Stop Collar Set

$20

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Prevent over / under drilling

Description

Superior split ring design made from durable, lightweight aluminum for easier use. 5x holding power vs. set screw design. Maintain precise and consistent hole depths and prevent over / under drilling mistakes. Quick and easy adjustment at any point on drill bit flutes / shafts. Fits twist and brad point drill bits for wood, metal, concrete / masonry. 8 piece set includes Allen wrench and one stop collar in each of the following sizes: 1/2″, 7/16”, 3/8”, 5/16”, 1/4”, 7/32”, 3/16”, 1/8”

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4.76 out of 5 stars

38 reviews

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One review with a 4-star rating

  1. UPDATE 2/16/18: 4 STARS NOW

    Ron Ramsey (verified owner)

    The idea of clamping the collar on the drill with a clamping screw instead of a set screw clamping directly on the bit is a FAR superior way to do it. Potentially better grip, no wobble etc.etc. However, this set has a way to go. The clamping screws are very fine thread metric in aluminum which isn’t a very good idea. also, the slot doesn’t go far enough across the collar so ‘as-is’, they can’t really clamp the bit. I found that squeezing the collar on the bit with Vice-grips, THEN, tightening the screw was the only way, I could get the collar to grip the bit. Putting some molly grease on the screw helped too. I’m going to cut the groove deeper in each collar so they can flex in easier Just the way they come, they’re pretty useless, but they have the potential of being excellent drill stops..Update 2/16/18: I’ve cut the groove deep enough now on 3 to allow them to flex easier & that definitely cures the problem. Wish the screws were coarser thread though, just lube the threads & use discretion when tightening.

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