/ Precision Measuring Tools / Precision Hand Tools / Precision Shop Tools / V-Blocks / 568A * Not actual product image 52590 568A V-Block and Clamp 52590 Other similar products Starrett V-Blocks come in a variety of styles to suit the numerous requirements of machinists. They are for general shop use and layout work, as well as for holding stock in place during light-duty milling, drilling, and grinding operations. All clamp screws have a hole to help secure the workpiece. V-Block and Clamp. Features Specifications Contact Starrett Features Hardened steel, precision ground parallel and square V-grooves are ground central and parallel to the sides and base - perfect alignment in matched pairs Clamps have screw holes at 45 Deg and 90 Deg to hold either square or round work Stepped groove construction permits high or low clamp mounting or small or large work Clamps do not project over the width of the block, permitting it to be used on the base, ends or sides 3/8-16 tapped holes permit mounting blocks on faceplates or angle irons Each block is 2-1/2" long x 3" wide x 2" high (63 x 75 x 50mm) Specifications Capacity (in): 2" Dia. Round; 1-7/16" Square (1-9/16" with Screw at Top) Capacity (mm): 50mm Dia. Round; 36mm Square (40mm with Screw at Top)