Dormer A0024.0-10 A002 HSS-TiN Coated Tip Jobber Drill 4.00mm (Box of 10) The Dormer A0024.0-10 A002 General Purpose Jobber Drill Bits offer fast and efficient drilling in aluminium, steel, plastic and more. They have a 4.00mm diameter and come sold in a box of 10. Their High-Speed Steel construction means they are extremely robust and Titanium Nitride tip coating ensures a longer life. They are self-centring for ease of use. 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: 4.0 mm Cutting Length: 43 mm Overall Length: 76 mm