IRWIN Lettered and Numbered Drill Bits information:
Letter and numbered drill bits were developed to make up the gaps in betwee... read more
What is the function of the hole in an auger bit?
The hole in the flute of the Installer Bits is to hook a wire through to ai... read more
Does the spade bit #88810 fit in the regular bit extensions #88702 that are not Quick-Change.
No, the 88810 (SPEEDBOR2000's) will not fit into the old extensions, 88702 ... read more