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Headcote’s new Smart-Bit makes it easy to set screw heads with its’ special integral stop collar that is permanently mounted to the shaft of a four flute countersink. The countersink’s cobalt drill is permanently set for the correct pilot hole depth when used in 5/4" decking, and last longer than ordinary tool bits when drilling in tough decking materials. The Smart-Bit design incorporates an "O" ring on the stop collar nose which prevents spinning that could mar the deck surface. The pilot bit is a 1/8" and the countersink is 1/4". Generally, estimate one Smart-Bit for every 100-125 square feet of decking to be installed. (5/4" x 6" on 16" centers). The ball detent style bit fits standard quick change chucks. Bits are replaceable; 2 extra bits are included. Imported.
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Reviewed by 4 customers
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Enormous time-saver
By Bob
from Belmont, MA
About Me Avid Do-It-Yourselfer
See all my reviews
Comments about Headcote Smart-Bit for #7 Trim Head Screws:
If your are using more that a handful of trim head screws, this item will save you a lot of time.
Pricey countersunk but works well
By Rob
from Georgia
I used this to pre drill for 1 5/8 trim head screws in Ipe. Bit stays sharp and countersink is clean and the perfect depth.
Great for doing what it is supposed to.
By JimE
from Chicagoland, IL
About Me Casual Do-It-Yourselfer
The tool works very well, but the design of the actual 3mm drill bit makes it more fragile than a standard twist drill. I broke one on the 3rd hole I was drilling and was very careful after that, as the replacements are about $3 each. Still, it really did what I wanted and was worth every penny in the time it saved :-)
Countersinking made easy
By Nevada Stan
from Gardnerville, Nevada
An excellent, easy to use tool for countersinking screws... especially now that it has replaceable drill tips.