Nxtop 6Pcs Metric Thread M3M10 Screw Tapping Tool 14 Hex Shank Titanium Plated HSS Combination Drill and Tap Set

This tap set includes SAE , so it has high versatility. Each tap drill is engraved with a label, which is convenient for you to choose the size that suits you. The convenient ¼-inch (6.35mm) quick change hex shank has a tapered end to prevent excessive knocks. Back taper exceeds the tap to prevent over-drilling and damage to the thread., High speed steel with Titanium coating,which supports much longer service life, Titanium Combination Drill taps are made of HSS 4341, which can ensure sharp, fast execution and retain strength and efficiency. The surface is treated with a titanium alloy, which greatly improves the cutting performance of the drill, is more wear-resistant and prolongs the service life., 6pcs drill tap set including SAE- 6-32nc, 8-32nc, 10-24nc, 10-32nc, 12-24nc, 1/4-20nc, These taps are used on a machine to do the tapping, generally more accurate because human error is eliminated