Sealey-AK5817M-Impact-Socket-Set-16pc-1-2-Sq-Drive-Deep-Lock-On-6pt-Metric-Sealey-AK5817M-Manufactured-from-Chrome-Molybdenum-steel-with-manganese-phosphate-finish-for-added-corrosion-resistance-Features-specially-machined-flutes-in-the-walls-of-the-socket-to-enable-use-on-up-to-85-rounded-fasteners-This-not-only-provides-added-strength-but-also-prevents-damage-to-worn-or-rusted-fixings-Suitable-for-use-with-air-electric-impact-guns-Supplied-in-storage-case-Sealey-AK5817M-Impact-Socket