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Precision machined · Extremely durable · Easy to change

BD-2 Carbide Bit

BD-2 Bit is precision machined to closest possible tolerances for long, trouble-free service. Its oversized carbide cuts faster—never balls up—retains its original effectiveness far longer.

Tapered shank of the BD-2 drive fits into the drill head without wedges or set screws. It can’t wobble or work loose. And, unlike blade-type drill heads, BD-2 Bits are easily replaced with hammer and punch.

BD-2 Bits can be replaced in seconds. Simply place the punch in the hole beneath the bit and tap with a hammer. The bit pops out. Then insert a new bit and tap lightly to seat.

Bits for BD, BDA, and BDC Heads are sold separately. For BD and BDA heads, specify BD-2 bit, BD2-LC bit, or BD2-W bit. For the BDC Head specify the BDC-550 CS1 bit.

* Other sizes available on request.

* These measurements may vary plus or minus ¹⁄₁₆” on BD auger-type heads, specify type of shank – 1½” square, 2″ square, 1⅛” hex, 1⅝” hex, 2″ hex and spline.

* BDC Drill Heads come in the same sizes as the BD and BDA Drill Heads and are offered with square or hex shank or API pin.

* These measurements may vary plus or minus ¹⁄₁₆”. BDA Drill Heads are offered with 2⅜”, 2⅞”, 3½”, and 4½” API shanks. Other threaded shanks on request.

ModelHole Size
in Inches*
Number of
Bits per head
BD, BDA, or BDC 45
BD, BDA, or BDC 55¹⁵⁄₁₆8
BD, BDA, or BDC 67
BD, BDA, or BDC 77¹⁵⁄₁₆10
BD, BDA, or BDC 9911
BD, BDA, or BDC 1010¹⁵⁄₁₆17

Order Blue Demon BD, BDA, and BDC Drill Heads Today!