Since 1907 Proto? punchs and chisels are made from tough alloy steel and offer the Professional Advantage you need for top quality craftsmanship.
Proto? punches and chisels are hardened quenched and tempered to precise specifications for durable hard tips and cutting edges
Each Proto? punch and chisel offers a modified parabolic struck end for greater resistance to mushrooming and chipping
Every Proto? cold chisel is designed with a cutting edge that is hand ground to exact angles for cutting through soft cast iron, brass, copper, aluminium, mild steel, bolts and rivets
Proto? standard duty punches have a two piece design that allows the tip to have a separate hardness to prevent peening and alows the tip to be produced straighter elimnating binding