A chop saw comprising: a base made from sheet metal which is formed into a rectangular box like structure having an opening facing downwardly which has a work surface; a motor unit pivotally mounted on the base; a fence mounted on the base which traverses the work surface; an adjustable clamp comprising a frame which is capable of being releasably attached to the work surface in a number of locations on the work surface, wherein the clamp is capable of co-operating with the fence to secure a work piece to be cut on the work surface; wherein the work surface comprises a plurality of slots; wherein the frame comprises at least one peg which is capable of engaging with and being held within one of the slots when the clamp is co-operating with the fence to hold a work piece; characterized in that the frame comprises a U shaped frame made from sheet metal; wherein there are two parallel rows of slots which extend in a forward and reverse direction across the work surface, each slot in one row being aligned with a slot in the other row wherein the frame comprises four pegs which are arranged in pairs in two parallel rows and which are capable of engaging with four slots, two in each row of slots; wherein, formed on the base of each side of the frame are two L shaped pegs having the same dimensions as each other; wherein the pegs comprise bases and peg slots, the bases of the pegs extending rearwardly and in parallel with each other, wherein a part of the base which forms the rear edge of a slot locates within the peg slot when the peg is located in and held within that slot, the width of the peg slot formed by the pegs being slightly greater than the thickness of the sheet metal forming the base. a base made from sheet metal which is formed into a rectangular box like structure having an opening facing downwardly which has a work surface; a motor unit pivotally mounted on the base; a fence mounted on the base which traverses the work surface; an adjustable clamp comprising a frame which is capable of being releasably attached to the work surface in a number of locations on the work surface, wherein the clamp is capable of co-operating with the fence to secure a work piece to be cut on the work surface; wherein the work surface comprises a plurality of slots; wherein the frame comprises at least one peg which is capable of engaging with and being held within one of the slots when the clamp is co-operating with the fence to hold a work piece; characterized in that the frame comprises a U shaped frame made from sheet metal; wherein there are two parallel rows of slots which extend in a forward and reverse direction across the work surface, each slot in one row being aligned with a slot in the other row wherein the frame comprises four pegs which are arranged in pairs in two parallel rows and which are capable of engaging with four slots, two in each row of slots; wherein, formed on the base of each side of the frame are two L shaped pegs having the same dimensions as each other; wherein the pegs comprise bases and peg slots, the bases of the pegs extending rearwardly and in parallel with each other, wherein a part of the base which forms the rear edge of a slot locates within the peg slot when the peg is located in and held within that slot, the width of the peg slot formed by the pegs being slightly greater than the thickness of the sheet metal forming the base.