6 New Proto USA Made 3/8″ V-Groove 5/8″ Hex Diamond Point Chisel J765/8

six New Proto 3/8″ V-Groove 5/8″ Hex Diamond Point Chisel​. Made in the USA. The PROTO 3/8″ diamond point chisel is made from S2 steel and specially heat-treated for greater strength and durability. Cuts V-grooves and cleans out inside corners. Hand-ground cutting edge to the exact angle for cutting through tough metals. Its modified parabolic striking end helps reduce mushrooming and chipping. Black oxide finish prevents rust corrosion