OTC Tools OTC Stinger 4605 Interchangeable Punch & Chisel Set. Safety protective handle allows easy grip and protects hand from being hit by hammer. 12 punches and chisels included: 5 flat chisels: 1/2″, 5/8″, 3/4″, 7/8″, and 1″ wide blades; 1 cape chisel: 1/4″ wide blade; 2 taper punches: 1/8″ and 1/4″ diameter; 2 pin punches: 3/16″ and 1/4″ diameter; 2 center punches: 1/8″ and 3/16″ diameter. Double locking ball detent holds punch or chisel securely in the driver handle.








