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Rockler Premium Extended-Length Drill Bits

Extra-long drill bits for use with our Corner Key Doweling Jig (#59517, sold separately)—made from M2 HSS for maximum durability.
Item #
Grouped product items
Product Price Qty
Rockler Premium Extended-Length Drill Bit, 1/8'' Dia. x 6'' Long Item #68329
In stock
$12.99 Each
Rockler Premium Extended-Length Drill Bit, 1/4'' Dia. x 6'' Long Item #63837
In stock
$15.99 Each
Rockler Premium Extended-Length Drill Bit, 3/8'' Dia. x 6'' Long Item #67434
In stock
$19.99 Each

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Our extended-length drill bits feature specially-designed flutes that eject chips quickly, meaning you won't have to repeatedly back the bit out to drill a deep hole. Made from M2 HSS to ensure maximum strength in demanding drilling applications, they are perfect for use with the Rockler Corner Key Doweling Jig. Less heat build-up and less mechanical flexion of the bit results in a cleaner exit hole and more accurate hole diameter to accept your decorative dowels.


  • Made from M2 high speed steel to minimize the risk of bending and breakage
  • Gyroidal torsion flute and wide land construction for fast, clean drilling of deep holes
  • Drills 12 or more drill bit diameters deep without having to back the bit out to clear chips
  • Feed rates up to twice that of standard drill bits

(1) Rockler Premium Extended-Length Drill Bit

More Information
Brand Rockler
Tech Spec
  • Material: M2 high speed steel
  • Tip Style: 135° Split Point
  • Drill Bit Length: 6''

Prop 65 WarningWARNING:
Cancer & Reproductive Harm -
Prop 65 WarningWARNING:
Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to