Reflex Fixed Torque bit extensions are perfect for expanding the range of torque values you can achieve while using the bit and driver of your choice. These preset, torque-limiting extensions are based on standard 1/4"-drive sizing for easy cross-compatibility with any accessory bits and drivers. Speed up bolt torque safety checks and quickly achieve proper fastener torque during adjustments either mid-ride or at home. Delivers accurate torque (+/- 4%) for up to 3000 cycles. Color-coded, fixed torque extensions Torque extensions accept any 1/4" standard bit Suitable for use with any 1/4" driver