GEARWRENCH 1 2 INCH DRIVE 19MM STANDARD IMPACT SOCKET 321092 141 025 Mitutoyo Inside Micrometer Head Injection molded grip for 141 025 Mitutoyo Inside Micrometer Head Interchangeable Rod Type (needs 04GAA285 anvil and 303341 nut for 50 63mm Micrometer) Wide range of inside measurements possible by combining extension rods and anvils with the measuring heads The sleeve is rotated to adjust the index line position when setting to a length standard 600 Lumen output 9–33V Multi voltage Virtually unbreakable polycarbonate lens Pre wired & fully sealed diecast Powder coated aluminium housing (IP66) Stainless steel mounting hardware Low current draw: 0 Our sockets have a manganese phosphate coating to resist corrosion The sockets feature off corner loading to reduce fastener rounding