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.
(based on 5 reviews)
of respondents would recommend this to a friend.
Reviewed by 5 customers
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Works pretty well
from New Orleans, LA
About Me Avid Do-It-Yourselfer
Comments about Headcote Smart-Bit for #7 Trim Head Screws:
I'm buying a second one to finish my deck, so I must like it pretty well. I'm glad I bought it because it definitely is saving me time predrilling the 1700 holes needed for this project. I'm using Ipe, which is hard, and I'm sure has something to do with the frequency of broken bits. The countersink holes have a fuzzy edge, and their depth varies. If I were using plugs to fill the holes I might be upset.
Bottom Line Yes, I would recommend this to a friend
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from Belmont, MA
See all my reviews
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
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.
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
from Gardnerville, Nevada
An excellent, easy to use tool for countersinking screws... especially now that it has replaceable drill tips.