|The Ritchey TorqKey wil properly install all Ritchey handlebars and stems at the factory-prescribed 5Nm or torque. Includes four interchangeable bits: 3, 4 and 5mm and T20. Will properly torque any bolt requiring 5Nm of tension. Sometimes, 'good enough' just doesn't cut it. Properly torquing bolts prolongs the life of bicycle parts as well as cyclists!