- Hardened steel tool available for professional engine builders, lightweight plastic tool available for the do-it-yourself engine builder.
- Install spiral wrist pin locks & wire wrist pin locks easier than ever before! Locks can be installed in a matter of seconds!
- To determine which tool needed for your particular application simply measure the wrist pin being used. A small block Chevrolet with a .927 diameter wrist would use the corresponding .927 tool. It's that easy!