Park Tool - CT-5 Mini Chain Brute Chain Tool Type_Combo The 11/12t version features longer

The 11/12t version features longer pins on the 12t side designed to reach past the 10t cog found on some SRAM and Shimano mountain bike cassettes

the Crest's design evolved directly from Stan's earliest ideas

and 10 mm sizes

3M Thinsulate insulation temperature rated to -30°C

Foldable legs

Park Tool - CT-5 Mini Chain Brute Chain Tool Type_Combo The 11/12t version features longerPARK TOOL CT 5 MINI CHAIN BRUTE CHAIN TOOL The CT 5 Chain Tool performs like a shop quality tool, in a lightweight compact size that easily fits in a saddle bag or mobile mechanic's tool roll. The CT 5 removes and installs pins on all 5 to 12 speed derailleur chains, including newer SRAM 12 speed designs. The integrated loosening shelf is useful for adjusting tight links on older style chains. Compatible with all 5 speed to 12 speed bicycle chains*