The Topeak Nano Torqbox DX torque sockets quickly and easily turn your mini tool into a torque wrench. These torque sockets work with any mini tool containing a 5mm Allen wrench. Perfect for applying the correct torque for component bolts and to prevent damage to expensive carbon parts. Key Features: Construction: Hardened steel construction, hardened steel tool bitsOptions: Includes 4, 5 and 6Nm socketsBits: 3,4,5mm Allen bits & T20, T25 Torx bits includedCarry Case: Bit carry case with mini tool strap includedDimensions: 8.2x5.1x2.7cmWeight: 200g