The Park Tool MT-40 Multi-Tool, click to enlarge
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Item # MT-40

/ Tools / Multi-Tools


The MT-40 is a high quality folding take-along tool that features forged aluminum side plates, a mix of hardened and plated tools, and smooth ergonomic operation.

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MT-40 Features

  • 2.5, 3, 4, 5, 6 and 8mm hex wrenches
  • T25 & T30 Torx® compatible driver
  • Combo cross/straight tip screwdriver
  • 5- to 12-speed compatible chain tool*
  • CO2 cartridge inflator adaptor
  • Key ring holder
  • Replaceable pin (part # 985-1)
  • Weight: 243g (8.57 ounces)

*The MT-40 chain tool will not peen Campagnolo® 11-speed chain rivets (see CT-4.3 or CT-6.3)


  • Factory Jackson Review The MT-40 is the fully loaded Park Tools multitool, with enough tools to build a bike from the ground up. It’s the tool you want for long rides as it’ll help you get out of pretty much any trail side nightmare.

Parts & Accessories


Replacement Chain Tool Pin

MT-40 Multi-Tool