Features For grinding, milling or drilling Made of hardened and precision ground tool steel Sides are parallel and vee is central and ground Central hole is provided for drilling or removing pins V-Block has four 3/8"-16 tapped holes, two in the bottom and one on each side for angle non-clamping Dimensions: 3-5/8" long x 1-7/8" wide x 1-7/8" high (including clamp) Holding capacity: 1-5/16"Fowler