20mm Easy Grip Manual Crimper for Aluminum Flip Off Caps, ea. Our Easy Grip Manual Crimper and Decapper for all 8, 11, 13 and 20mm crimp caps. The curved handle features comfortable use compared to metal grip designs. The bottom-pull handle allows for a steadier hold than top-push handles. An easily-viewed adjustment knob is located at the head of the crimper and decapper. The clearly shown + and - symbols along with the directional arrows, simplify adjusting the intensity of the crimp or decap needed. The knob is also designed to indicate when the crimp setting has been reached, when it fully contacts the body of the crimper/decapper