STEP BLOCKS (Hardened & Tempered, Black Finish) 'SATGURU' Step Blocks are used as adjustable supporting Blocks at the rear of the clamp while clamping the work piece. Different heights can be achieved by using combination of two different size of Step Blocks. Available in pairs (Pair consists of 2 identical Step Blocks) Combination of two Step Blocks of same or different sizes is kept as support under one Strap Clamp. But in case of use of Step Blocks with Stepped Strap Clamp, only one Step Block of suitable size is kept as support under one stepped strap clamp.