A set of 4 drill stops in the most commonly used sizes: #40 part number:
DS-40 , #30 part number:
DS-30 , #21 part number:
DS-21 , and #12 part number:
DS-12 . Overall length 1-5/16". Used to stop the drill bit after reaching a preset depth. Overall length of 1-5/16".
1 lbs (0.5Kg) shipping weight.