The TUSK DOUBLE-ENDED PANEL DRILL BITS are designed for shallow hole drilling for rivets in flat & curved panels and used in sheet metal fabrication. Double ended design doubles the life of the drill bit. Constructed of M2 High Speed Steel for the best combination of strength and heat & wear resistance. Fully ground HSS drill bit with a Titanium Nitride (TiN) coating for longer life. Features increased 135 degree point enabling a faster drilling rate and lower feed pressure and a ‘split point’ or ‘self centring’ tip. Suitable for alloyed and non-alloyed steel, soft stainless steel, soft cast iron, aluminium, copper, brass, bronze and hard plastics.