McMaster 71405A32 12 Point Combination Wrench, 7 mm, 5 3 16" Overall, Black Oxide Steel 3RVP4 IP rated gasket seal for dust IP rated gasket seal for dust and moisture resistance Standards ASME Replaceable Insert No Products By Industry Electrical Tip Style Phillips Finish Chrome Handle Material Plastic Handle Design Cushion Grip Insulated No Shank Shape Round ESD Safe No Nonsparking No Tip Style Group Phillips Tether Capable Tether Capable Screwdriver Tip Style Phillips Shank Material Alloy Steel Features Precision Machined Tip Standards ANSI External 12 Point Head Style Offset Head Offset Angle 15° Head Thickness 13 64" Ratcheting Nonratcheting Material Black Oxide Steel Drive Size 7 mm Overall Length 5 3 16" Open End Wrench Style Open End Opening Shape Round For Drive Style External Square but they're more likely to slip when you apply more torque