AUTOTOOLHOME Combination Drill and Tap Bit 6-32nc 8-32nc 10-32nc 10-24nc 12-24nc 1/4-20nc Set of 6 - -

Description

See more product details Features Complete hole drilling, tapping, deburring and countersinking in one operation with power impact tool Back tapered beyond tap to prevent thread damage from over-drilling, Made from high-speed steel, these combination drill and tap bits are designed to tap up to 10-gauge wood, plastic copper, brass, aluminum, sheet metal and other soft materials. They are not suitable for drill and tap in very hard metals. A perfect countersink drill bit set, a perfect tap and die set, two in one, one-step processing, greatly save processing steps and time costs, improve working efficiency. High speed steel construction provides extra durability to drill bits to perform multiple drilling operations while maintaining its strength. Self-centering point, do not need assistant center drilling or center punching. Specification Shank Dia: 1/4 inch Hex Shank(quick change for cordless drill ) Material: High speed steel(HSS 4341) Drill bit hardness:HRC64 Bit size:6-32NC (3.5mm), 8-32NC(4.2mm), 10-32NC(5mm), 10-24NC (5mm), 12-24NC(5.7mm), 1/4-20NC(6.35mm) Package include: 6pcs tap drill bits set 1/4 inch hex shank Suitable for most hand electric drills, cordless drills Drill tap bit is engraved with the appropriate sizes so you can take out the guesswork. Swivel feature props up drill bits and securely holds them in place until ready to use. Case folds up neatly and is convenient to travel with on different job sites and locations.

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