These U and V Blocks are manufactured to inch dimensions. The V Block is manufactured from hardened steel and the U block is self-lubricating bronze with oil-impregnated graphite plugs. The Q23 blocks are provided with 1/2" dowel holes and are drilled and counterbored to accommodate 1/2" S.H.C.S. for mounting. The Q39 blocks are provided with 5/8" dowel holes and are drilled and counterbored to accommodate 5/8" S.H.C.S. for mounting.
