ITEM NAME:6PCS/Set M3 - M10 Hex Shank Titanium Plated Screw Thread Drill Bits Compound Tap.1 x Set 6pcs(M3,M4,M5,M6,M8,M10) Hex Shank Tap Drill Bits. Type:Drill Bits & Chucks. Drill Type:Drill Set. Uses High Speed Steel 6542 material, higher hardness, more durable,can be used for drilling the steel plate even the 2mm 304 steel plate.