General Contractor

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Tools by Trade: General Contractor

Tradesmen depend on innovative products that meet their needs on the jobsite. Whether its performance they can trust or a product that outlasts the competition, tradesmen seek out tools that help them get the job done faster. The IRWIN® VISE-GRIP® brand is legendary for innovative pliers and wrenches that tradesmen trust enough to ask for by name. While the IRWIN STRAIT-LINE® brand has been the category leader in marking and layout for decades.

General Contractor FAQ

How do I resharpen Irwin auger bits?

First never sharpen the outside edges of the bit that cut--the spur and sid... Read more

How do I resharpen Speedbor flat bits?

Use a small file to sharpen the top of the cutting edge and inside the spur... Read more

I recently purchased an old 13 piece set of IRWIN Solid Centre Stem Auger Bits from a used tools store for use in a hand-brace. The bits came in a wooden box with a swing-out lower drawer, and a black descriptive label on the inside lid. The box label says "1 set 20 1-2 quarters". What do these numbers mean? The bit numbers are 4, 5, 6, 7, 8, 10, 12, 14, and 16.

The 4, 5, 6 etc refers to the size in sixteenths. 4 is 4/16 or 1/4". 6 is 6... Read more