Features These ratcheting combination wrench sets have an open end and a 12-pt. Box end with additional grooves that make it easier to connect with the head of the fastener and connect at more angles for better accessibility compared to a 6-pt. wrench. Combination wrenches have the same SAE (inch) size on each end for use on one specific size fastener. A gear mechanism on the box end allows the wrench to rotate freely in one direction without removing the wrench head from the fastener and repositioning the tool. Material / Alloy Steel Finish / Chrome Number of Tools / 8 Range of Head Sizes / 5/16 in to 3/4 in Head Offset Angle / 0 Degrees Head Type / Standard Container Type / Storage Rack Measurement Type / SAE Head Size / 1/2 in, 11/16 in, 3/4 in, 3/8 in, 5/16 in, 5/8 in, 7/16 in, 9/16 in Opening Type / Rounded Opening Angle (Deg.) / 15 Degrees Tether Style / Tether Capable Non-Magnetic / No Nonsparking / No Corrosion Resistant / Yes Anti-Slip Design / No Insulated / No Ratcheting / Yes Reversing / No Container Color / Black Box End Type / 12-Point Box End Number of Points / 12 Head Thickness / 3/16 in to 7/16 in Min. Arc Swing / 5 Degrees Range of Lengths / 5 11/32 in to 9 27/32 in Wrench Length Style / Standard Standards / ASME Weight / 2.6 lb Handle Type / One Piece