We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Silver cobalt drill bit with reduced shank and bronze oxide finish

Drill America

Drill America 1-3/16in 1/2in Reduced Shank Cobalt Silver and Deming Drill Bit pneumatic accessory

SKU CH-5JH1-SR63X

A 1-3/16 inch cobalt steel drill bit with a 1/2 inch reduced shank for use in larger drill chucks

  • Product typeDrill Accessories
  • Large 1-3/16 inch hole capacity for heavy-duty drilling
  • 1/2 inch reduced shank fits standard drill chucks securely
  • Cobalt steel construction resists heat and extends bit life
  • Bronze oxide finish reduces friction and improves chip removal

Drill America 1-3/16in Cobalt Drill Bit

This Drill America cobalt steel bit features a 1-3/16 inch cutting diameter with a decimal equivalent of 1.1875. It has a reduced 1/2 inch shank designed for use in chucks that cannot accommodate larger shanks. The bronze oxide surface treatment on the flutes helps resist wear during demanding drilling tasks. Overall length measures 6 inches with a 3 inch flute length.

Suited for large hole drilling in tough materials

This bit suits machinists and maintenance technicians drilling large diameter holes in stainless steel, cast iron or other high tensile alloys where cobalt heat resistance is required. The reduced shank allows compatibility with standard 1/2 inch capacity drill chucks. Buyers needing a full 1-3/16 inch shank for maximum rigidity or those requiring a pilot drill for deep hole accuracy should look at alternative tooling.

How it compares

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

Price $70.99
Pricier than about 75% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameDrill America
Product typeDrill Accessories

Questions about this item

Will this 1-3/16" cobalt drill bit fit the 1/2" chuck on my current drill press?

Yes, the reduced shank is sized to 1/2" so it fits standard 1/2" drill-press chucks and large portable drills.

Can I use this bit at the same 1.1875" diameter in a handheld cordless drill?

The 1-3/16" diameter requires high torque; a handheld cordless drill may stall or overheat unless it delivers sufficient power and you use a side handle for control.

More in Bits, Hole Saws & Accessory Kits

Similar items