msa k7801 master palmr reversible internal adjustable torque screwdriver set air tools palmreversible internal adjustable torque pistol grip screwdriver set, 1800 rpm, comes with all the accessory that you need to complete your job. The screw driver is designed for challenging jobs such as on car interior, trucks, buses.. etc. SKU MSA K7801 Item Name Reversible Internal Adjustable Torque Pistol Grip Screwdriver Set air pressure 90 psi 6. 21 bar exhaust side free speed 1800 rpm horse power 0. 9 hp 0. 68kw hose size 3 8" 9. 52 mm max. torque