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Brad-point drills are basic to good woodworking. Although they look like twist drills at first glance, there are several design differences.

The most significant difference is the brad point. This point prevents "skating" of the bit, as well as allowing accurate bit positioning.

The better brad points have two lips or outlining spurs on the perimeter that score the circumference of the hole before the chipping bevels begin stock removal. This results in very clean holes with negligible fiber pull and no tearing of the wood as the bit enters.

Utility brad-point drills have angled chipping bevels with no perimeter spurs. Although they will also drill clean holes, a slight hesitation on entry is desirable for the cleanest hole. This allows the tips of the chipping bevels to fully score the circumference of the hole first, preventing any woolliness on the surface.

All of our brad-point drills are relieved back of the cutting edges to reduce friction. With their clean entry and nearly flat-bottomed hole, they are the first bits that any woodworker should buy.


Lee Valley Design Features
 
Forstner Tooth Profile
 
Saw Tooth End Views

 
 
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