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Are the GrooveLock and ProTouch pliers tested?

Yes, the GrooveLock Pliers go through a series of 12 tests ranging from the Extreme Load test that tests the amount of force which can be applied to the handles to a test that measures the amount of twist the product will withstand.

Our ProTouch" pliers all meet or exceed all applicable ANSI/ASTM (USA) and DIN (Germany) specifications.

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Can IRWIN chisels be re-sharpened? If so, what's the best angle to re-sharpen at?

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I am crosscutting oak veneer plywood on a table saw, and the veneer is chipping on the backside. What type of blade would you recommend to cleanly cut across plywood?

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What is the difference between a nutsetter that has a standard hex design vs. one that has a lobular design?

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I recently purchased a cargo trailer. There are 2 screws that hold the license plate bracket on. I cannot identify the screw drive type. At first glance I thought it was a Torx head, but upon closer examination and trial I noticed that the star has 8 points instead of 6. The points are not as prominent as a Torx. Can you identify it?

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Are the GrooveLock and ProTouch pliers tested?

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What does the 'Bi-Metal' mean when referring to a utility blade?

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