Product details:

The jaws on this gear puller can be changed to operate with 2 or 3 jaws with internal or external pulling action. Simply unscrew the knurled screw cap to release spring and jaw cover, unhook the jaws and replace as necessary. Replace cover plate and tighten spring with knurled screw. Keep clean and well oiled between uses. Always use eye protection when using this gear puller. The jaws on this gear puller can be changed to operate with 2 or 3 jaws with internal or external pulling action 75mm-180mm. Simply unscrew the knurled screw cap to release spring and jaw cover, unhook the jaws and replace as necessary. Replace cover plate and tighten spring with knurled screw. Keep clean and well oiled between use. Always use eye protection when using this tool.