Dormer A0024.2-10 A002 HSS-TiN Coated Tip Jobber Drill 4.20mm (Box of 10) The Dormer A0024.2-10 A002 Jobber Drill Bits designed for drilling in most materials like plastic, steel and more. They have a 4.20mm diameter and self-centring tip which is Titanium Nitride coated for longer life. Their High-Speed Steel construction makes them extremely robust and durable. This model comes as a pack of 10. 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: 4.2 mm Cutting Length: 43 mm Overall Length: 76 mm