ITEM NAME:6pcs HSS Drill Tap Countersink Combination Deburr Bits Set With 1/4inch Hex X4T8 6pcs HSS Drill Tap Countersink Combination Deburr Bits Set With 1/4inch Hex X4T8 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. Color: Silver Material: High Speed Steel (HSS4341) Hardness: HRC 63 Shank: 1/4inch Hex Shank (6.35mm) Quantity: 6 pcs Shank Length: 30mm / 0.39inch Total Length: 53mm-58mm / 0.21inch-0.23inch Bit Diameter 6-32NC (3.5mm): 2.8mm / 0.11inch 8-32NC( 4.2mm): 3.5mm / 0.14inch 10-32NC( 5mm): 4.1mm / 0.16inch 10-24NC ( 5mm): 3.8mm / 0.15inch 12-24NC( 5.7mm): 4.5mm / 0.18inch 1/4-20NC( 6.35mm): 5.1mm / 0.20inch Item Weight: Approx. 50.3g / 1.77oz 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! Package List: 6 * Drill Tap Countersink Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
