Description Description Surface area 30 wide by 21.5 deep and able to fit material up to 1/8 thick Spacing between the first and last pins (center to center) is 17 Features 5 punch slots: Center punch is a 1/4 diameter circle distance from hole center to hole center is 4 1/4 Two on left and two on right have 3/8 wide by 1/4 deep rectangle Will punch holes 3/16 from material's edge for the rectangular slots, and 1/4 for the single center circle View AllClose