Sand-Blasted Tips: Greater screw-tip adherence and corrosion resistance
permanently wedged for a secure fit
Flexible power supply (4×AAA or USB) | 30-hour battery life
High resolution in low vacuum
Chrome Vanadium Steel: High-grade
Combination Wrench SAE SUPERCOMBO® Set 15 pc - Williams Sand-Blasted Tips: Greater screw-tip adherenceA 15 piece SAE SUPERCOMBO combination wrench set in 5 16" 1 1 4" built for industrial mechanics, millwrights, and maintenance techs who need a complete SAE coverage in an aerospace spec set. SUPERCOMBO open ends protect fastener corners; SUPERTORQUE 12 point box ends apply force to fastener flats for higher torque without rounding. Made in the USA; limited lifetime warranty. Set Contents 5 16", 3 8", 7 16", 1 2", 9 16", 5 8", 11 16", 3 4", 13 16", 7