TRX-Star-Hex-Spline-Bit-Set-Impact-28pc-3-8-1-2-Sq-Drive-Sealey-AK21902-High-quality-impact-grade-S2-steel-satin-finish-36mm-L-bits-Specially-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-Sealey-AK21902-TRX-Star-Hex-Spline-Bit-Set-Impact-28pc-3-8-1-2-Sq-Drive