Swanlake 22Pc Punch Set And Hammer With Brass, Hollow, Steel, Plastic Punches, ?Double Face Hammer?Chrome plated steel hammer has nylon and brass heads to ensure strong, but non-marring contact while in use. We provide you with 4 interchangeable hammers (rubber, brass, steel and nylon). You can choose the right hammers according to your needs. ?High-Carbon Steel?8Pcs roll pin punch including 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 9/32" and 5/16" ?Made of brass for use with surfaces that may be damaged by steel punches. ?Hollow End?4Pcs hollow end starter punch set including 1/16?, 5/64?, 3/32?, 1/8?. ?Quality Steel?4Pcs steel punches including: 2 each of 1/16" and 3/32", after special treatment?pins are durable. ?Special Plastics?2Pcs sturdy plastic punches including 15/64", 3/8"?used special treatment of plastic, has higher hanroness ang higher density