Dormer A0024.9 A002 HSS-TiN Coated Tip Jobber Drill 4.90mm (Box of 10) The Dormer A0024.9 A002 is a General Purpose Jobber Drill Bit with a 4.90mm diameter. It comes sold in a box of 10. These drill bits are made from High-Speed Steel with a Titanium Nitride coated tip for longer life when drilling in aluminium, plastic and steel. Features: Can be used in many different handheld and machine applications Titanium nitride coated tip increases the service life of the drill, improving performance when drilling harder materials The 118 degree split point aids self-centring when used by hand and also reduces the push force required Improved accuracy with more accurate holes and a better quality of finish Premium HSS material can be used for drilling many materials including steels, aluminium and stainless steel Specification: DIN338 Head Diameter: 4.90 mm Cutting Length: 54 mm Overall Length: 86 mm