Helps thousands of mechanics by taking the headaches and hassle out of drilling safety wire holes in bolts and nuts. Easy to use; Saf-T-blok holds the bolt steady after you thread it into the required depth. You then drill the hole through the center with no risk of misalignment.
Note: Used for drilling into shank.
|Metric||5||6x1 8x10, 8x1.25, 10x1.25, 10x1.5|
|Aero||5||8-32, 10-32, .25x20, .25x28, 5/16x24|
Hard to gauge thread depth. exit guide much smaller than entrance so it breaks the bits.
These SAF-T-BLOK's enable you to drill holes through the thread of the bolt.