Bench PIN and Anvil Combo SFC Tools - 13-325 Easily clamps on to a workbench or table up to 1.5 (4 cm) thick. The holder opening is 1.75 x 0.5 (4.5 x 1 cm). The overall measurements of the bench pin are 7 x 1.7 x 1 (18 x 4 x 2.6 cm). The anvil surface measures 2.7 x 2.4 (7 x 6 cm).