Quick, one-handed blade release, Ratchet action allows easy, one-hand cutting, No tools required for instant blade change, Provides straight cuts of 1/2 - 1-1/4 (O.D. 5/8 - 1-5/8) white and gray schedule 40 and 80 PVC, Replacement blade (Cat. No. 50032) and pin (Cat. No. 50033) available