Designed for quick, clean cuts through hose, plastic tubing & PVC schedule 40 pipe up to 1 In. very sharp hardened stainless steel blade, internal parts and pivots made of all stainless steel. Handle is lightweight ergonomically-designed reinforced nylon. Unlike others, the blade can be sharpened or replaced. Great for working where there is water–it is completely rustproof. Replacement blade: #42770