For quality and precision, choose The Dormer L000E500M3NO3XA002 Tap + Drill  The Dormer L000E500M3NO3XA002 consists of a General Purpose Jobber Drill Bit with a 2.5mm diameter and an E500 M3 Tap. The drill is made from High-Speed Steel with a Titanium Nitride coated tip for longer life. The 2 piece set features a tap and its corresponding pre-hole drill in one convenient package, helping to save time and error. Features: For use on machines or handheld applications Straight flute designed for threading both through or blind holes High-Speed Steel (HSS) provides good hot hardness when drilling The bright finish helps prevent built-up-edge when tapping sticky materials 118-degree split point provides self-centring, low thrust and easier penetration Specification: Tap: E500 M3 6H Drill Overall Length: 57mm Drill Cutting Length: 30mm Drill Head Diameter: 2.5mm