These collet blanks are useful in making special work-holding fixtures or pot chucks. Slotted blanks have a 5/32" hole. When turning a slotted collet blank, a 5/32" pin is held in the hole to prevent the collapse of the collet.Part# Collet Style Diameter Thickness Face Material Price 0262-03 D 5/8" 7/32" Slotted 12L14 75.00 0272-03 D 1" 5/16" Slotted 12L14 81.00 0282-03 D 1-3/8" 5/16" Slotted 12L14 97.00 0292-03 D 1-1/2" 9/32" Slotted 12L14 97.00 0722-03 D 9/16" .575" radius 3/32 hole Slotted FC Brass 97.00 0732-03 D 5/8" 7/32" Slotted FC Brass 97.00 0742-03 D 1" 5/16" Slotted FC Brass 101.00 0251-03 WW 5/8" 7/32" Slotted 12L14 75.00 0261-03 WW 1" 5/16" Slotted 12L14 81.00 0271-03 WW 1-3/8" 5/16" Slotted 12L14 97.00