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Drill America 1-1/2 inch cobalt drill bit with reduced shank and bronze oxide finish

Drill America

Drill America 1-1/2 in. Reduced Shank Cobalt Drill Bit

SKU CH-NYS4-206ZD

Cobalt steel drill bit with reduced 1/2-inch shank for 1.5000-inch holes in tough metals

  • Product typeDrill Accessories
  • 1-1/2 inch capacity for large-hole drilling
  • 1/2 inch reduced shank fits standard chucks
  • Cobalt steel construction resists heat and wear
  • Bronze oxide finish reduces friction and extends life

1-1/2" Cobalt Drill Bit for Heavy-Duty Drilling

The Drill America 1-1/2" cobalt drill bit features a reduced 1/2" shank and bronze oxide finish for durability in tough materials. Its cobalt steel construction resists heat and wear when drilling stainless steel, cast iron or titanium alloys. Silver and Deming style flutes provide efficient chip removal during deep-hole operations. The 1.5000 inch diameter suits large-diameter applications in maintenance and fabrication shops.

Upgrade from Standard High-Speed Steel Bits

This bit replaces general-purpose high-speed steel drills that dull quickly in abrasive or work-hardening metals. The cobalt alloy retains hardness at elevated temperatures, extending tool life in repetitive production runs. The reduced shank allows use in 1/2" chucks without a separate adapter, saving setup time. It is not suited for precision micro-drilling or non-metallic materials where carbide or diamond tooling is preferred.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $144.99
Pricier than about 90% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameDrill America
Product typeDrill Accessories

Questions about this item

Will a 1/2 in. reduced shank fit my drill chuck?

Yes, the 1/2 in. reduced shank is designed for standard 1/2 in. drill chucks.

What is the correct drilling speed for this cobalt bit?

Run the drill at low RPM with steady pressure; cobalt steel overheats if spun too fast, dulling the cutting edges.

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