The Topeak Nano Torqbox preset torque socks (4Nm/5Nm/6Nm) kit will work with any mini tool containing a 5mm Allen wrench (or single 5mm Allen wrench). To get the right torque values on component bolts for safety and to prevent damage to expensive carbon parts. Included is a handy carry case to neatly store your chosen preset socket and the 5 most popular tool bits (3/4/5mm hex & T20/T25 Torx). Key Features: Construction: Hardened steel construction, hardened steel tool bitsOptions: Available in 4, 5 or 6Nm versionsBits: 3,4,5mm Allen bits & T20, T25 Torx bits includedCarry Case: Bit carry case with mini tool strap includedDimensions: 5.4x5x2.2cmWeight: 75g