AI Door Skin and SPR Tools Bundle Includes the following tools: #21892 AI Skin Zipper is an air hammer driven door skinning tool with a wider opening for any 1-millimeter aluminum skin and 1.5-millimeter door shell. #21896 AI Skin Zipper2 allows you to reach tighter areas than the original AI Skin Zipper, perfect for aluminum door window flange openings. #2197 Extraction Tool and #2196 SPR Insertion Tool allow you to quickly remove and insert self-piercing rivets. #35 SoftStrike Aluminum Conversion Kit (Dinging Spoon Cover, Rubber Dolly Covers, Hammer Cover) #3513 Soft Strike General Purpose Dolly Cover is made from Buna rubber for your steel dolly to allow you to easily transition from working body tools on steel to aluminum without the worry of cross contamination and galvanic corrosion. #3517 Soft Strike .625 Light Toe Dolly Cover is made from Buna rubber for your steel dolly to allow you to easily transition from working body tools on steel to aluminum without the worry of cross contamination and galvanic corrosion. #3525 Hard Cap Body Hammer Cover features a strong reinforced Nylon head that will not tear when working on aluminum door sharp edges. A flexible O-ring allows a secure fit on hammer heads from 1.5 in. up to 1.6 in.