Stanley brick punch 10mm x 140mm stanley 4 18 236 pin punch quality chrome vanadium steel increased strength and durability for retained accuracy when marking out centre lines hole locations and pilot drill starting points quenched and tempered to precise specifications li size 140 x 10mm 5 1 2in x 3 8 in stanley 4 18 236 brick punch 10mm x 140mm 3 8in x 5 1 2in