General Contractor FAQ
What does the 'Bi-Metal' mean when referring to a utility blade?
The bi-metal terminology refers to how the utility blade is constructed. W... read more
IRWIN Lettered and Numbered Drill Bits information:
Letter and numbered drill bits were developed to make up the gaps in betwee... read more
I drilled the large hole in my door and have also drilled the small hole, but the small hole does not go all the way back to the large hole. What can I do?
Remove the template from the door and finish drilling out the lock set. read more