1 Set of 6pcs HSS 6542 Titanium Coated M3-M10 Connection Hex Drill Bits with Tap Set Material: 6542 High Speed Steel Color: As Shown pic Specification: Style: M3, M4, M5, M6, M8, M10 Size: As the picture shows This is a compound hex tap shank which is made of M3 M4 M5 M6 M8 M10. Suitable for: iron, cast iron, stainless steel, carbon steel This product is hole, tapping, chamfering, one step by step, easy to use Features: Can save processing steps and time costs, improve efficiency It is a spiral groove, under thread processing, cutting to exclude, and was coiled used internally threaded through holes Wear and long service life Quantity: 6pcs/set Note: Manual measurement, please allow error, thank you. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package: 6pcs x hex drill bit set