TRX-Star-Hex-Spline-Bit-Set-Impact-42pc-3-8-1-2-Sq-Drive-Sealey-AK21901-High-quality-impact-grade-S2-steel-satin-finish-bits-each-size-in-36-and-75mm-lengths-Heat-treated-CNC-machined-tips-reduce-stress-and-prevent-cam-out-under-load-Torsion-bits-absorb-impact-and-transfer-maximum-torque-to-the-fixing-Hardened-58-62-HRC-and-tempered-for-added-strength-Colour-coded-for-fast-identification-Supplied-in-storage-case-with-inclined-tray-for-quick-and-easy-bit-selection-Sealey-AK21901-TR