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Silver cobalt drill bit with reduced shank, 1.06 inch diameter, 6 inch overall length

Drill America

Drill America DWDCO1-1-16 1.06 in. Reduced Shank Cobalt Drill Bit

SKU CH-Y4VT-K8HF3

A 1.0625 in. cobalt drill bit with a reduced shank and notched point for heavy-duty drilling

  • Cobalt steel resists heat for longer tool life
  • HD notched point starts on contact without wandering
  • Reduced 0.5 in. shank fits standard 0.5 in. chucks
  • 0625 in. diameter bores large holes in a single pass

1.06 in. Cobalt Drill Bit

This Drill America cobalt steel bit features a reduced shank and a heavy-duty notched point for accurate starting. The 1-1/16 inch diameter suits large hole drilling in metal fabrication and maintenance tasks. A single bit is supplied in the package.

Sustained drilling performance

Cobalt steel retains hardness at elevated temperatures generated during prolonged cuts, reducing wear compared to standard high-speed steel. The notched point geometry helps maintain centering and chip evacuation over the full three-inch flute length. The half-inch reduced shank fits common drill chucks without requiring a larger capacity tool.

How it compares

Measured against everything we stock in Power Drills, Drivers & Cutting Bits, at today’s prices. Recalculated every night.

Price $35.99
Cheaper than about 69% of the 2,412 comparable items (median $81.99).

Specifications

No published specifications for this item yet.

Questions about this item

How much heat does the 1.06 in. cobalt bit generate when drilling steel all day?

Cobalt steel dissipates heat better than standard high-speed steel, and the HD notched point reduces friction, so the bit stays cooler during extended drilling sessions.

What chuck size is needed to hold the reduced 0.5 in. shank of this bit?

A drill chuck with at least a 0.5 in. capacity is required to grip the reduced shank securely.

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