R8 collet 1 inch

0. $ 9 95. ASIN ‏ : ‎ B00R11NDDW. For technical drawings and 3-D models, click on a part number. 27. Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 1/8-inch Mill Chuck Holder, 65Mn Spring Steel, 7/16-20UNF Thread, Taper Spindle R8 Collets for Mill Machine, 1 Pcs 3. ASIN ‏ : ‎ B00R11NOZE. 38 $ 50. 59 G1640 - Precision R-8 Collet - 1/2". 24 ea. Collets with coolant keep tools cool to extend tool life. TIR (inch) 0. Only 17 left in stock - order soon. 0007 Inch TIR Web Price $25. $1499. MSC # 07548944. delivery Fri, Jun 7. Threaded internally 7/16"-20 Guaranteed T. 1 Inch Steel R8 Collet. $8. 0011 Inch TIR. Made from the highest-grade steel available for collet manufacture, these 1/2" R-8 collets are precision ground to very close tolerances. 988"-20. List Price: $636. 00 Get it by Tuesday, May 21 Jul 17, 2019 · BTSHUB 23pc 1/16-3/4 inches Precision R8 Collets Set Mill Chuck Holder Hardened T. 1/2 Inch Steel R8 Collet. Jan 7, 2016 · Versatile Tooling: ER20 collets ranging from 3/32" to 1/2" for broad compatibility with R8 spindle machines, ideal for varied milling & drilling projects. Sep 23, 2019 · This item: Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 1/4-inch Mill Chuck Holder, 65Mn Spring Steel, 7/16-20UNF Thread, Taper Spindle R8 Collets for Mill Machine $12. 25" Top Diameter, 0. Quantity. Mfr # 800-064. 8 out of 5 stars. 2 2 reviews Write a Review. Whether you're a professional or a hobbyist, you can trust the R8 collet to get the job Sep 23, 2019 · This item: Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 1/8-inch Mill Chuck Holder, 65Mn Spring Steel, 7/16-20UNF Thread, Taper Spindle R8 Collets for Mill Machine, 1 Pcs Oct 25, 2019 · This item: New 11 Pcs R8 Collet Set 1/8-3/4 Inch . Save Item Share Print. 800-526-4956 Tel:800-526-4956; GSA Contract Holder: GS Jul 11, 2013 · Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 1/4-inch Mill Chuck Holder, 65Mn Spring Steel, 7/16-20UNF Thread, Taper Spindle R8 Collets for Mill Machine, 1 Pcs 4. Sep 17, 2022 · Size of R8 collet set: 1/8 inch - 7/8 inch, threaded internally of R8 collet set: 7/16 inch - 20. Various models meet your needs. G1646 12-Pc. Collet Size. Write the first review. All Hardinge R8 collets are a solid one piece design, hardened and spring tempered to assure accuracy and durability. Designed for daily use in a busy industrial workshop environment (as well as higher end hobby users) Ultra high quality, high precision ground, max runout +/- . Feb 27, 2021 · 5C and R8 Collets. Choose from our selection of R8 taper tool holders, including R8 taper end mill holders, R8 taper arbors for slitting saws, and more. 3 4 reviews Write a Review. R8 Collet. Shipping UPS Ground. 5mm in smaller sizes) and are available in 1mm or 0. Choose from our selection of R8 collets, ER-32 collets, 5C collets, and more. 001 inch. 0005 inch, 0. FREE delivery Mon, Apr 1 . Best Sellers Rank: #99,975 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement) #5 in Workholding Collets. 00. We carry a variety of R8 collets and R8 collet sets in metric and inch sizes. 0006 TIR 29 Pack. HHIP R8 Collets Our precision ground and hardened R8 collets reduce tool change time. Typical: $14. 7 out of 5 stars 17 collet size range. Best Sellers Rank: #79,007 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement) #2 in Workholding Collets. Best Sellers Rank: #78,568 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement) #2 in Workholding Collets. 202-5107. 3/4-inches opening size. 001; Overall Length: 4. FREE delivery Wed, Jun 5 on $35 of items shipped by Amazon. 0006. 0006" Lathe Collet. 8 11 ratings $2529 1/2 Inch Steel R8 Collet 7/16-20 Drawbar Thread, 0. After installing the R8 body in the milling machine spindle, tool holders can be switched out in seconds. Victor Machinery carries an extensive collection of R8 collets, arbors, end mill holders, and collet chucks for Bridgeport milling machines. (1) Write a review. Accusize individual R8 ER collet arbors are featured with the MAX 8,000 RPM on manual milling machines. com (1396) Visit the LittleMachineShop. Lyndex-Nikken toolholders, rotary tables, presetters, machine tool accessories, and automation helps manufacturers improve their accuracy, efficiency, and productivity. Standard Size: Our R8 collet chucks are designed to clamp diameters ranging from 1/8" to 7/8". 7/8 Inch Steel R8 Collet. These collets tightly grip workpieces when installed into a 5C collet chuck or holder. 20. 5 2 reviews Write a Review. 005-0007". An R8 collet has a very narrow range of compression – typically limited to 0. Date First Available ‏ : ‎ July 11, 2013. R8 Collets can be used in many other manufacturers' milling machines, machining centers, R8 precision spindles, and R8 Collet fixtures. Range. 1/8-3/4 by 8ths. Add to cart- Collet System: R8: Minimum Collet Capacity (Inch) 1/8: Minimum Collet Capacity (Decimal Inch) 0. Discover reliable machinist tools now. Report an issue with this product or seller. 10 at MSC Industrial Supply, serving the metalworking, safety, and MRO industries for over 75 years 1/8 Inch Steel R8 Collet. Grip. If you plan to hold metric tooling in an R8 collet, you will need metric collets that correspond to the diameter of the tool. TIR (Total Indicated Runout) Accuracy. FREE delivery Sun, Jun 2 on $35 of items shipped by Amazon. Made from the highest-grade steel available for collet manufacture, these 1/4" R-8 collets are precision ground to very close tolerances. 5mm steps. Mfr # 800-032. Lg. 8" x 6" x 4. Made from high-grade collet steel and precision ground to exacting tolerances. I. The standard series are: ER-8, ER-11, ER-16, ER-20, ER-25, ER-32, ER-40, and ER-50. Accusize one-piece indexable End Mills w/ R8 shanks come in various sizes, with much more concentricity, accuracy, and rigidity than separated milling cutters and R8 shanks. call our customer service hotline at 847-367-4800. Super Heavy Duty APU16 1/32-5/8 Inch R8 Shank Precision Integrated Keyless Drill. Sep 22, 2011 · Lyndex R8 collets are made with hardened threaded bushing in the back for long life. 0007 Inch TIR. 99 New Listing 13pcs 1/8-7/8 inches Precision R8 Collets Set Mill Chuck Holder Kit . Jan 13, 2023 · Applicable to various milling machines with R8 tapered holes Each collet has a laser etched size for easy identification Milling tool collet seat hole grinding, smooth surface, small resistance Use these collets to securely hold round-shank tool bits in the R8 spindle of a milling machine. Suitable for a range of different milling machines. 1. MSC # 09750647. The 1/32” collets that fall in between the major 1/16” divisions would be used very infrequently. R8 Collets do not collapse. R8 Direct Collets - Imperial. This complete 12 piece set includes: 1/8" thru 3/4" in 1/16" increments plus 7/8". 25. 00 /Each. Customer Reviews: 375. 24. 100-TG Collets Install into a 100-TG collet chuck or holder to tightly grip round-shank tool bits in milling machines. New Listing 13Pc Mill Chuck Holder R8 Collet Set 1/8-7/8" High Precision for Bridgeport. 1-inches opening size. In stock. 7874 Inch Collet Chuck Capacity. 089" Length, 1. Mfr # 231-4708. 0004 inches, crucial for high-precision machining tasks and superior workpiece quality. Metric. $14. To remove a tool holder, depress the brass locking button and rotate the collar on the R8 body. 13 Piece 1/8-7/8 inches Precision R8 Collets Set Mill Chuck Holder Kit 3 $4999 FREE delivery Fri, Jun 14 Arrives before Father's Day Buy R8 Collets | Shop our comprehensive inventory, online and in-stock now. 5 1 review Write a Review. 950-inches bottom diameter. The silver color looks perfectly cool, also providing more conveniently function. Typical: $11. SKU. Web Price. MSC # 09750324. R8 Collet Set 1/32-1 Inch Fit for Various R8 Mill Spindle Taper Bore 0. Square. 0006" Lathe dummy JOHAHTANG 13Pcs Precision R8 Collet Set, Mill Collets Set for Mill Machine, 1/8"-7/8" Mill Chuck Holder Mar 25, 2021 · Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 3/4-inch Mill Chuck Holder, 65Mn Spring Steel, 7/16-20UNF Thread, Taper Spindle R8 Collets for Mill Machine dummy Lyndex-Nikken Lyndex 800-048 R8 Collet, 3/4" Opening Size, 4. The Hardinge R8 collet is manufactured to exacting standards from special alloy steel. Collet with Coolant. 5C Collets are one of the most universal collets in a machine shop. The drawbar thread is 7/16"-20 UNF, and the precision is an impressive 0. When a new tool holder is inserted, a spring-loaded pin snaps the collar back into the locked Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 3/8-inch Mill Chuck Holder, 65Mn Spring Steel, M12 Thread, Taper Spindle R8 Collets for Mill Machine, 1 Pcs. Choose from our selection of R collet sets in a wide range of styles and sizes. Brand: LYNDEX More Info. $ 159. › See more product details. 089-inches length. Hardened and ground throughout Superior quality R8 Collets Set. Arrives before Father's Day. 8 out of 5 stars Sep 23, 2019 · This item: Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 5/16-inch Mill Chuck Holder, 65Mn Spring Steel, 7/16-20UNF Thread, Taper Spindle R8 Collets for Mill Machine, 1 Pcs Only 2 left in stock - order soon. Install into an ER-32 collet chuck or holder to tightly grip round-shank tool bits in milling machines. Find 3/4 Inch Steel R8 Collet at MSC Industrial Supply, serving the metalworking, safety, and MRO industries for over 75 years Precision R8 Collet 1/2". ASIN ‏ : ‎ B00N415UA2. MSC # 79783148. Max. The most often used end mill sizes are highlighted to make them quick to find. 0007 inch, 0. Aug 1, 2009 · Lyndex R8 collets are made with hardened threaded bushing in the back for long life. 202-5100. 0011-inches TiR tolerance. 0006" Lathe dummy Accusize Industrial Tools 23 Pc Er40 Collet Set, Size from 1/8'' to 1'' in Fitted Strong Box, 0223-0935 Inch Size Apply. Oct 11, 2022 · BTSHUB 23pc 1/16-3/4 inches Precision R8 Collets Set Mill Chuck Holder Hardened T. Find R8 Collets; Collet Size (Inch): 1; Collet Size: 1; Material: Steel; Drawbar Thread Size: . 6Piece 1/8-3/4 Inches Precision R8 Collets Set Mill Chuck Holder Kit. Mfr # 231-4732. 05 / ea. 0002″ at clamping surface. Precision R-8 Collet Set. Customer Reviews: Choose from our selection of mill collets, including R8 collets, collet chucks, and more. Given the narrow range of Nov 13, 2018 · Specifications Model: R8 ER16 Material: 40cr (chrome molybdenum alloy steel) Drawbar Thread: 7/16" Overall Length: 140mm (5. Country of Origin ‏ : ‎ China. 28. 11 Pc Set covers a wide range of end mill sizes from 1/8″ to 3/4″. 0787 to 0. com: r8 collets Jul 11, 2013 · Since 1982, our first priority as an importer and superstore has been to provide superior value and service to the manufacturing and metalworking industries. Search. Only 11 left in stock - order soon. Mill chuck holder kit is made of steel, which has good rigidity, more durability and long service life. 5. R8 EMERGENCY/STEP COLLETS. Made of highest grade steel available. FREE delivery Tue, Jul 16 on $35 of items shipped by Amazon. 1/32-5/8 Inch Drill Chuck Self Tightening Keyless Drill Chuck for CNC Drilling Machine or Lathe Spindle with R8 Shank Drill Chuck Adapter. Takes 7/16"-20 drawbar. Dec 17, 2021 · 7/16 R8 ER20 COLLET CHUCK SET ; 3PCS 3/4 ER20 1. Nov 24, 2009 · Drill Chuck, 1/2" with R8 Shank - Chuck Key Included and High Degree of Accuracy, LittleMachineShop. Size. Number of Pieces. They are offered in both inch and metric sizes. 6. 1/4: TIR (inch) 0. 01mm ; Power source type: Hand Powered ; Included components: Case › See more product details Nov 5, 2015 · R8-Shank-ER-Collet Chuck. Mill collets set clamping force, strong versatility. R MT3 Quick Change Collet Set Item# T10070 $36000 Add. HHIP 3900-0006 6 Piece R8 Collet Set (1/8-3/4 Inch by 8THS) : Amazon. When a new tool holder is inserted, a spring-loaded pin snaps the collar back into the locked position. TM8-501-3203. ER collets collapse to hold parts up to 1mm smaller than the nominal collet internal size in most of the series (up to 2mm smaller in ER-50, and 0. 00 $8. MSC# 09750324 Mfr# 231-4732 1 In Stock Quantity Add to Cart Compare Value Collection Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 3/4-inch Mill Chuck Holder, 65Mn Spring Steel, 7/16-20UNF Thread, Taper Spindle R8 Collets for Mill Machine. Integral Indexable End Mill with R8 Shank. Estimated delivery date Est. View our R8 tooling here. Mill chuck holder hole grinding, smooth surface, small Sep 23, 2019 · Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 3/16-inch Mill Chuck Holder, 65Mn Spring Steel, M12 Thread, Taper Spindle R8 Collets for Mill Machine, 1 Pcs 3. 00000000. 0006: collet material: hardened steel: drawbar thread size Dec 9, 2021 · Buy INPANOLS R8 Taper ER32 Collet Set, R8 ER32 Collet Holder Chuck Kit with BTSHUB 23pc 1/16-3/4 inches Precision R8 Collets Set Mill Chuck Holder Hardened T. $6. Exclusive Features: The size engravings are offset to make it easier to read when loaded with collets. SKU: 1-5250-100. 38 TTS TOOL HOLDER ; FLANGE IS 1. Sets. Keep machinery and equipment moving with AC or DC power. Choose from our selection of 1/8" collets in a wide range of styles and sizes. Customer Reviews: 4. 1 / 3 2 " 1 / 1 6 Sep 17, 2022 · Size of R8 collet set: 1/16 inch - 3/4 inch, threaded internally of R8 collet set: 7/16 inch - 20. Tapped 7/16" unf for drawbar. Its strong grip ensures that your workpieces stay in place and that you get the best results every time. Get a secure grip on your workpieces with this R8 collet. Hardinge R8 collets are the result of over 100 years of experience in serving the needs of the machining industry. The 5C system lends itself to most jobs. 0012"/30μm TIR with 13 Labeled Storage Boxes, for Milling Machine Drill Presses Boring Machine Machining Center Mar 23, 2022 · BTSHUB 23pc 1/16-3/4 inches Precision R8 Collets Set Mill Chuck Holder Hardened T. 3. Or fastest delivery Wed, May 29. 60. Regular Precision R8 Collet 1. Hardened and precision ground. Use these collets to securely hold round-shank tool bits in the R8 spindle of a milling machine. Pick from nearly 120 varieties of 5C Collets in various Jun 4, 2021 · BTSHUB 23pc 1/16-3/4 inches Precision R8 Collets Set Mill Chuck Holder Hardened T. R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 3/8-inch Mill Chuck Holder, 65Mn Spring Steel, M12 Thread, Taper Spindle R8 Collets for Mill Machine, 1 Pcs 20 $1199 FREE delivery Sat, Apr 6 on $35 of items shipped by Amazon Or fastest delivery Wed, Apr 3 Amazon. $26. A specified quantity is Sep 23, 2019 · This item: Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 3/16-inch Mill Chuck Holder, 65Mn Spring Steel, M12 Thread, Taper Spindle R8 Collets for Mill Machine, 1 Pcs Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 1/4-inch Mill Chuck Holder, 65Mn Spring Steel, 7/16-20UNF Thread, Taper Spindle R8 Collets for Mill Machine. $39. Jul 11, 2013 · Item model number ‏ : ‎ 3900-0006. ca: Tools & Home Improvement Jun 12, 2017 · Precision Thread Hole allows the collet to be quicky connected with pull rod. Precision Engineering: Guarantees exceptional accuracy up to 0. 0006" Lathe dummy KUNTEC 13 Piece Precision R8 Collet Set Mill Collets Set Taper Spindle R8 Collets for Mill Machine 1/8inch - 7/8inch Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 1/8-inch Mill Chuck Holder, 65Mn Spring Steel, 7/16-20UNF Thread, Taper Spindle R8 Collets for Mill Machine, 1 Pcs. 4 out of 5 stars 23 R8 Collet Set shipped to you today, R8 spindles, R8 collet workholding, R8 collet precision and accurate, R8 collet milling, R8 collet machining. Jul 11, 2013 · Item model number ‏ : ‎ 3900-0826. 00 $ 111. Range range of different sizes available - from 1/8" to 3/4". No Filtered Results 1/16" (3) 3/32" (2) 1/8" (2) 5/32 LYNDEX 1" R8 ROUND COLLET. 5 372 Electric Motors. R. Part of the appeal of the 5C collet system is its wide range of sizes, commercially available from 1/64” to 1-1/8” in a variety of bores to include, round, square, hex, serrated. Mill chuck holder hole grinding, smooth surface, small ER colletsare the most widely used clamping system. Collet. They provide a stronger hold on small workpieces than a standard lathe chuck. . 7/16x20UNF. 0. Precision R8 Collet 1/4" SKU. 1 product. $50. ER32 Collet Chuck, 1" Straight Shank. Inch. drawbar thread size. 99 $ 12 . Find R8 Collets; Collet Size (Inch): 3/64; Material: Steel; Drawbar Thread Size: . Discover R8 Collets at MSC Industrial Supply. 1") Collet chuck Model: ER16 (Cap was Hexagonal type) Package included 1x R8 ER16 7/16 Straight Collet Chuck Holder Jun 4, 2021 · This item: Accusize Industrial Tools R8-OZ25 Collet Set 15 Piece Set, 1/8 to 1 inch, 1 R8 Collet Chuck, 1 Spanner Wrench, 0223-0362 $296. They have internal threads. MSC # 79783270. Direct collets in R8 taper size. Steel. Over 1 million products that ship and deliver fast. Jun 27, 2024 · Grizzly’s R-8 Collets are fit for any lathe or mill with a R-8 spindle taper. In stock and ready to ship. Typical: $15. Or fastest delivery Sat, Jun 15. 0005". 00 $ 296 . 0012 in/30 μm, ensuring top-notch accuracy for your machining needs. com Store 4. 51") Shank diameter: 28mm (1. 99. All R8 Collets on display are made from Alloy spring steel and fully hardened. Add to Cart. 437 x 20 RH; Tir: 0. Manufacturer ‏ : ‎ ABS Import Tools Inc. Value Collection 1 Inch Steel R8 Collet 7/16-20 Drawbar Thread, 0. Only 1 left in stock - order soon. 98. Jul 11, 2013 · Item model number ‏ : ‎ 3900-0804. Our Part # ALL-41049. FREE delivery Sun, Jun 16 on $35 of items shipped by Amazon. 0006" Lathe dummy VEVOR 13 pcs Precision R8 Collet Set, 1/8'' - 7/8'', 45# Mill Collet Chuck 0. Aug 15, 2014 · About this item. FREE delivery Mon, Feb 19 on $35 of items shipped by Amazon. Jan 24, 2024 · About this item . 7/16-20 Drawbar Thread, 0. com Aug 9, 2021 · 6Pcs ER8 Collet Chuck Spring Collet Set CNC Engraving Milling Lathe Chuck Tool 1/8-3/4 Inch Fit for CNC Engraving Machine and Milling Lathe Tool Specification: Drawbar Thread: 7/16"-20 Material: Made of high-quality formulated spring steel, durable and sturdy. R8 Fractional Round Collet Kit 11 Pieces from 1/8" to 3/4" by 16ths. Details. 5" tall; 24 holes; Made in USA; Made R8 Taper Shank, ER Collet Chuck Set. Shipping UPS Ground . $111. 202-5115. $1399. Add to cart. 54 sold. Save 5% with coupon. 5 INCH ; Collet nut included ; High Precision TIR 0. 38. R8 ROUND INCH COLLET SETS. Jul 17, 2019 · KUNTEC 13 Piece Precision R8 Collet Set Mill Collets Set Taper Spindle R8 Collets for Mill Machine 1/8inch - 7/8inch dummy BTSHUB 23pc 1/16-3/4 inches Precision R8 Collets Set Mill Chuck Holder Hardened T. R8 ROUND INCH COLLETS. MSC # 09750084. Fits any machine with R-8 Spindle Taper. It comes in three concentricities: 0. If you are having a problem placing your online order, have questions about your merchandise, or need assistance with something not listed please call us at 1-716-791-6197. 10. 09420019000011. Since 1982, our first priority as an importer and superstore has been to provide superior value and service to the manufacturing and metalworking industries. 59 $ 12 . R8 Collets. Grizzly’s R-8 Collets are fit for any lathe or mill with a R-8 spindle taper. R8 ROUND METRIC COLLETS. High precision 8 piece set includes 1/8-1" x 1/8" R8 collets. At Penn Tool Co, we have R8 collet holders and sets from exceptional brands. R-8 Collet Set. 950" Bottom Diameter Buy SLGHLSAHG R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 3/8-inch Mill Chuck Holder, 65Mn Spring Steel, 7/16-20UNF Thread, Taper Spindle R8 Collets 1 Pcs A21501 at Walmart. Or fastest delivery Wed, Feb 14. Made from high-quality, durable materials, this collet is designed for precision and accuracy. A specified quantity is required. Mfr # 231-4764. 15-Pc. Made of high grade tool steel. 10 at MSC Industrial Supply R8 Collet Wall Storage Rack Engraved for all sizes from 1/16 to 3/4 inch by 32nds and with one pocket blank. Manufacturer ‏ : ‎ HHIP. Precision 5-C Collets Set Item# G1238 $10200 12 Pc. Find R8 collet dimensions from 1/32” to 7/8” or 3mm to 22mm. Choose from our selection of 1/2" collets in a wide range of styles and sizes. 25-inches top diameter, 0. 1250: Maximum Collet Capacity (Inch) 3/4: Maximum Collet Capacity R8 Collets. ER32 Collet Chuck, 3MT Shank. $134. R8 collets are one of the most Sep 23, 2019 · This item: Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 1/2-inch Mill Chuck Holder, 65Mn Spring Steel, M12 Thread, Taper Spindle R8 Collets for Mill Machine $12. 000000. Get it as soon as Tuesday, Feb 20. $1109. $3300. Quick-Change Tool Holders for Milling Machines. com Sep 23, 2019 · Utoolmart R8 Precision Round Spring Collet, R8 Collet, Precision R8 Collet Set, 3/4-inch Mill Chuck Holder, 65Mn Spring Steel, 7/16-20UNF Thread, Taper Spindle R8 Collets for Mill Machine - Amazon. Choose from our selection of ER-16 collets in a wide range of styles and sizes. 12. 4. Mfr # 4500382. Quality very durable milling addons. Total. Qty. kb si lc se rh zu ct qk mj sh