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Silver and Deming drill bit 15/16 inch 118 degree point black oxide finish half inch reduced shank high speed steel

Chicago-Latrobe

Chicago-Latrobe 55460 15/16 in 118 Degree Silver & Deming Drill 1/2 Reduced Shank

SKU CH-K1TW-9BHTZ

A high-speed steel drill bit with a 15/16 inch diameter and 118 degree point angle for general-purpose drilling

  • Product typeDrill Bits
  • Main materialHigh Speed Steel
  • 15/16 in diameter handles large holes
  • 118 degree point angle starts cuts cleanly
  • High-speed steel body resists wear
  • Black oxide finish reduces friction
  • 1/2 in reduced shank fits standard chucks

Chicago-Latrobe 55460 Drill Bit

The Chicago-Latrobe 55460 is a Silver & Deming drill bit designed for drilling large-diameter holes in metal using a standard 1/2 inch chuck. It suits maintenance technicians and fabricators who need a single bit to bridge the gap between standard twist drills and larger hole-making tools.

118 Degree Point and Black Oxide Finish

The 118 degree point angle provides reliable centring and efficient chip evacuation in general-purpose steel and iron. A black oxide finish adds lubricity and corrosion resistance, reducing galling and extending the usable life of the high speed steel cutting edges.

15/16 Inch Diameter with Reduced Shank

The 15/16 inch cutting diameter requires a machine capable of delivering sufficient torque at low speed for this width of cut. The 1/2 inch reduced shank fits common drill presses and heavy-duty hand drills, but the large flute volume demands rigid workpiece clamping to prevent bit seizure.

How it compares

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

Price $42.99
Pricier than about 63% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE
Product typeDrill Bits
Size & build
Main materialHigh Speed Steel

Questions about this item

How often will the 15/16 in high-speed steel cutting edges need resharpening?

Resharpening frequency depends on the material being drilled and the feed pressure used; the 118-degree point angle can be reground on a standard bench grinder when cutting performance drops.

What is the first limit reached when drilling deep holes in steel with the 1/2 in reduced shank?

The 1/2 in reduced shank limits the maximum chuck capacity required, so the drill press or hand drill must accept at least a 1/2 in shank before the 15/16 in bit can be used.

How much heat builds up in the black-oxide finish during continuous drilling?

The black-oxide finish helps retain cutting lubricant and dissipate heat, but sustained high-speed drilling in steel will still generate significant heat at the cutting lips.

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