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6pcs HSS 4341 Drill Tap Countersink Set Combination Deburr Bit High-Speed Steel Combined Tap and Drill 1/4" Hex Quick Change Tapping Deburring Drill Bits Kit

6pcs HSS 4341 Drill Tap Countersink Set Combination Deburr Bit High-Speed Steel Combined Tap and Drill 1/4" Hex Quick Change Tapping Deburring Drill Bits Kit

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This 6pcs HSS 1/4" hex shank combination drill tap bit set are SAE deburr countersink bits. Great for hole drilling, tapping and deburring / countersinking.

Features:
HSS 4341 SAE combination tap and drill bit set.
All-in-one and multi-functional.
Back tapered beyond tap to prevent thread damage from over drilling.
An essential hardware tool for woodworking using.
Suitable for drilling & tapping wood, plank, aluminium plate or sheet iron.
Include 6 sizes in one drill bit set(10-32NF, 8-32NC, 6-32NC, 10-24NC, 12-24NC, 1/4-20NC), to meet your different needs perfectly.

NOTE:
The speed can not be high up to more than 300rpm when tapping! Otherwise, it's easy to be broken.
Pay attention to the operation skill, too much shaking and tilt will affect tapping, even break off the screw tap! 


Specifications:
Color: Silver
Material: High Speed Steel (HSS4341)
Hardness: HRC 63
Combined Tap and Drill Sizes: 10-32NF, 8-32NC, 6-32NC, 10-24NC, 12-24NC, 1/4-20NC
Shank: 1/4" Hex Shank (6.35mm)
Quantity: 6 pcs  
Shank Length: 30mm / 0.39"
Total Length: 53mm-58mm / 0.21"-0.23"
Bit Diameter:
6-32NC (3.5mm): 2.8mm / 0.11"
8-32NC( 4.2mm): 3.5mm / 0.14"
10-32NF( 5mm): 4.1mm / 0.16"
10-24NC ( 5mm): 3.8mm / 0.15"
12-24NC( 5.7mm): 4.5mm / 0.18" 
1/4-20NC( 6.35mm): 5.1mm / 0.20"
Item Weight: Approx. 50.3g / 1.77oz
Package Size: Approx. 7 * 5 * 1.1cm / 2.78 * 1.97 * 0.43in
Package Weight: Approx. 55g / 1.94oz

Package List:
6 * SAE Drill Tap Countersink

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  • By n***i

    December 14, 2017

    Good Seller! Item as described A+

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  • By e***n

    December 9, 2017

    Shipped right away, in a well protected package.

    Is this helpful? (0) (0)

  • By j***n

    September 11, 2017

    just like description said & super fast shipping

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