General Contractor FAQ
How do I change the batteries?
Remove the set screws on the top of the unit using the small hex key. Chang... 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
As a mason who works on large job sites, I have dropped a level and now the level no longer work properly. Does anyone make a stronger level?
First let me suggest that you always carry a box beam level. Typically, lev... read more