Drill in plastic, steel and aluminium with the Dormer A0028.5 HSS-TiN Coated Tip Jobber Drill The A0028.5 A002 General Purpose Jobber Drill Bits from Dormer feature an 8.50mm diameter and are sold in a box of 10. These bits are made from High-Speed Steel with a Titanium Nitride coated tip for longer life. They offer great and fast drilling performance in plastic, steel and aluminium. Features: Can be used in many different handheld and machine applications 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 The 118-degree split point aids self-centring when used by hand and also reduces the push force required Titanium nitride coated tip increases the service life of the drill, improving performance when drilling harder materials Specification: DIN338 Cutting Length: 76 mm Overall Length: 118 mm Head Diameter: 8.50 mm