Factory Spec 5001 Premium Chain Breaker Kit Includes 3 different size extractor pins, works with 500-630 pitch chains Flares pins for rivet style master links (500-530 pitch chains only) Can be mounted to table using threaded holes in underside, also includes handle to use without mounting. It is recommended to grind down rivet head of pin before using tool. Failure to do so may result in bending the extractor pin. Kit contents are comparable to Motion Pro Jumbo Chain Tool Heavy duty chain break Multiple pin sizes provided to match chain