The Panasonic EY75A8 1/2in Impact Wrench has a newly designed hammer mechanism that tightens to M16 and pre-tightens to M20, with equal torque in forward or reverse for speedy assembly and disassembly. It has a compact, lightweight design that provides easy handling when working in tight spaces or when using longer sockets. Bumper protection has been increased to reduce wear on housing surfaces, a tougher rubber helps avoid oil and solvent damage to grip areas. Improved metal battery contact liners provide extra durability in serial use applications. Jobsites make tough demands on Power Tools. Unexpected water contact or exposure to dust can cause a malfunction of the tool leading to trouble and delays. Panasonic have developed the Tough Tool IP range for exceptional resistance to water and dust. Tough Tool IP is a reassuring presence in the most difficult conditions. Compatible with both 14.4V and 18V Panasonic batteries. Specification: Bit Holder: 1/2in Square Drive with Ball Detent No Load Speed: 0-1,000/0-1,500/0-2,500/min. Impact Rate: 0-1,900/0-2,900/0-3,600/bpm Max. Torque: 280Nm Tensile Bolt Capacity: Standard M6-M16, High M6-M12