Deluxe Billfish Hand Crimper is a top quality precision hand swager/crimper featuring a drop-forged stainless steel crimping head for increased durability and longevity . Four position crimp tool is designed to crimp wire and mono from 50 lb. to 550 lb. test (up to 2.00mm). Works best with thin wall copper and aluminum sleeves. Complete with hardened side cutter and rubber coated, chrome plated steel handle arms for a non-slip grip when crimping and years of trouble free use. Due to the corrosive nature of salt water, please store your crimp tools in a dry, moisture free area when not in use.