Atlas Workholders: 9/16"X1/2"X13TPI T-Slot Machine Clamp Set 58 Pieces Inch Sets (Quantity of each component part given in brackets) Designed to save set up time and solve most clamping problems. Manufactured to high standards. All step clamps are forged and hardened and the step blocks are made from high quality steel. All components (other than the studs) are heat treated and finished in black oxide. Available to suit a full range of metric and imperial T-Slot widths. Supplied in steel racks which can be wall mounted or fitted to workbenches for ease of storage (except M16 set which is supplied in wooden box). MPN: 5036140015494 EAN: 5036140015494 9/16"X1/2"X13TPI T-Slot Machine Clamp Set Attributes: Contents: (x4) 3" x 11/4", (x4) 4" x 11/4", (x4) 5" x 11/4", (x4) 6" x 11/4", (x4) 7" x 11/4", (x4) 8" x 11/4" (x2) 21/2" x 11/8" x 1/2", (x2) 2" x 11/4" x ¾", (x2) 6" x 11/4" x 7/8" Flanged Nuts: (x6) 3/8" UNC 7/16" Extension Nuts: (x4) 3/8" UNC x 1" Long Step Blocks (Pairs): (x4)