Chrome molybdenum steel jaws with a nickel plated finish for increased corrosion resistance, diagonal ribbing on its jaws for a firm and secure grip, Non-slip textured handles, Micro jaw adjusting screw with allen key entry, used to adjust the size of the jaw opening, Vinyl-coated release lever to unlock the clamps, With secure hold, Due to its straight design. Long: 10" (254mm), Jaw Width: 76mm, Jaw Hardness: 45-60 HRc, Input Size For Allen Key: 8mm