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Drill Bits

If you drill wood, plastic, metal, or concrete we've got the drills and the drill bit sizes you need to get the job done. Along with thousands of twist drills choose from a wide selection of counterbores, countersinks, augers and more.

We've just added over 2,000 twist drills, drill sets and more to our site from Triumph Twist Drill! Feel free to browse the Triumph Twist Drill or Southeast Tool online catalogs. There's also a complete Drill Bit Sizes reference in the back of the Triumph catalog.

Be sure to also visit our Drill Bits for Boring Machines for an entire range of counterbore, countersink and specialty boring bits.


Drill Set  

Drill Bit Sets

Over 60 twist drill sets, and over 2,000 individual twist drills!  Fractional, letter and wire sizes are available.


Straight Shank Drill Bit  

Drill Point Drills - Straight Shank

Straight shank drills available in fractional, letter, metric and wire sizes.


Reduced Shank Drill Bit  

Drill Point Drills - Reduced Shank

Choose from general purpose, heavy duty, cobalt and silver and demming reduced shank drills.


Hex Shank Drill Bit  

Drill Point Drills - Hex Shank

Recommended for use with hard wood, soft wood, plywood particle board, plastic metal.  118 degree self-centering split point and a 1/4" hex shank for hex or adjustable power tool chucks.


Plexi Point Drill Bit  

Plexi Point Drills

Special geometry designed to drill holes in acrylic. Available in both inch and metric sizes from 1/16" to 1/2".


Taper Point Drill  

Taper Point Drills

Jobber and taper lengths available in sizes 5/64 - 3/8".


Brad Point Drill  

Brad Point Drills

Straight shank brad point drills with shanks the same diameter as the cutting edge. We offer diameters from 1/8 - 1/2" and lengths from 2 3/4 - 12".


Counterbores  

Counterbores

Primarily used on portable drills and clamp to the center drill with a set screw. Available in 3/8 to 2-1/2" for center drills sized 3/16 to 1/2".


Countersink  

Countersinks

Primarily used on portable drills and clamp to the center drill with a set screw. Available in 3/8 to 3/4" for center drills sized 1/8 to 3/8".


Center Drills for Countersink or Counterbore  

Center Drills for Countersink - Counterbore

Center drills designed to work equally well in counterbores, countersinks and other boring bits requiring a center drill. Choose from bradpoint, drillpoint or fishtail point.


 Double Ended Drills  

Double Ended Drills

Recommended use in thin sheet metal, popular for pop-rivet drilling applications.  Available in packages of 12.


Quick Change 3 Wing Drill  

3 Wing Drills

These carbide tipped 3 wing drills with quick change are available from 3/4 - 1 7/8" in diameter.


Spade Bit  

Spade Bits

Spade bits equipped with end spurs to reduce splintering and produce a clean hole. Avaliable in sizes 5/16 to 1-1/2"


Glass and Tile Drills  

Glass and Tile Drills

Reduced shank, carbide-tipped point drills recommended for use with glass, tile, mirror, and ceramic.  Available from 1/8 - 1/2" sizes.


Masonry Drills  

Masonry Drills

Regular helix, high helix and extra length masonry twist drills.  118 degree point, carbide-tipped and black oxide finish.


Auger Bit  

Auger Bits

Auger bits in a variety of styles and sizes from 1/4 - 1 1/2" diameter and 7 1/2 - 29" long.


Spiral Plug Cutter  

Plug Cutters

Use a plug cutter to hide screws in wood by counterboring then covering the screw with a wood plug. The wood plug can then be sanded flush and finished to match.


Self Centering Drill Guide  

Self Centering Drill Guides

Self centering drill guides, or Vix Bits, designed to drill perfectly centered holes in cabinet hardware.


 Alignment Reamers  

Alignment Reamers

High Speed Steel with a 1/2" shank, and 3 flatted shank available with a black and bronze oxide coating.