Can be used on its base, on the end, or on either side|The clamp is smaller than the outside width of the block, but has an adjustable side screw to support the block and prevent tilting|The V at the stepped end is at right angles to the base and is handy for holding shouldered studs, pins, etc.|A clearance hole for drilling or removing dowel pins is provided in the block|The block has four 3/8-16 tapped holes