The perfect way to protect tiny drill bits safely through nuts and bolts
Allows nuts and bolts to be drilled to take locking wire
Use with a 1/16" drill.This is the perfect way to avoid drill bit breakage
For use on:6mm*1.0mm 8mm*1.0mm 8mm*1.25mm 10mm*1.25mm 10mm*1.5mm 12mm*1.5mm bolts
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