The Park Tool CT-4.2 Master Chain Tool installing chain rivet, click to enlarge
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Item # CT-4.2

(discontinued) / Tools / Chain

Master Chain Tool

The CT-4.2 has been discontinued and replaced by the CT-4.3.

The CT-4.2 Master Chain Tool replaces the CT-4 Master Chain Tool. The CT-4.2 will work with “hour-glass” shaped 8, 9, 10 and 11 speed chains. Also fits the asymmetrical Shimano® chain designs such as Dura-Ace® 7900.

Specially designed to work with the tight tolerances and narrow profile of 10-speed chains and most high quality derailleur chains. The CT-4.2 is a powerful, precise tool designed to quickly and accurately remove and install chain pins. Without a doubt the most accurate chain tool we’ve ever built!

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CT-4.2 Features

  • Integrated Link Pocket to ensure precise alignment during use
  • Replaceable rotating pin
  • Perfectly contoured cushioned handles
  • Precisely machined investment cast body and components

Note: The CT-4.2 is NOT compatible with Wippermann™ chains.

Documentation

Parts & Accessories

CT-4.2

Replacement Parts

CTP-4K

Replacement Chain Tool Pin Kit


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