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Chicago-Latrobe 53480 118 degree cobalt drill bit with straw bronze finish and reduced shank

Chicago-Latrobe

Chicago-Latrobe 53480 118 Degree Silver & Deming Drill 1/2 Reduced Shank

SKU CH-TA2R-GD2WQ

Drills 1 1/4 inch holes with a 118 degree point and reduced shank for standard chucks

  • Product typeDrill Bits
  • 118° point angle centres the bit for accurate starts
  • Cobalt construction resists heat and wear in tough materials
  • 1/2" reduced shank fits standard drill chucks securely
  • Straw/bronze finish reduces friction for smoother cutting
  • Silver & Deming design handles large-diameter holes efficiently

Chicago-Latrobe 53480 Drill Bit

The Chicago-Latrobe 53480 is a Silver & Deming drill bit built for heavy-duty metalworking. It targets machinists and maintenance technicians who need a large-diameter hole in steel or iron. The 1/2 reduced shank allows use in standard drill chucks.

118 Degree Point Angle

The 118 degree point angle is the critical specification that determines cutting behaviour. It provides strong centring and aggressive cutting action for general-purpose drilling in ferrous materials. This angle suits high-thrust applications where a split point is not required.

Cobalt Construction and Installation

The cobalt body offers high heat resistance and hardness for extended tool life in tough alloys. The reduced shank fits directly into a 1/2 inch chuck without adapters. Common issues include chatter if feed pressure is too low or premature wear if cutting fluid is omitted.

How it compares

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

Price $134.99
Pricier than about 89% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE
Product typeDrill Bits

Questions about this item

How does the 118-degree point angle affect drilling performance in a machine?

The 118-degree point angle provides a versatile cutting geometry suitable for general-purpose drilling in metal, wood, and plastic materials on standard drill presses or hand drills.

What does the 1/2-inch reduced shank allow regarding chuck compatibility?

The 1/2-inch reduced shank enables the 1 1/4-inch drill bit to be securely held in a standard 1/2-inch chuck, bridging the gap between large bit diameter and common chuck capacity.

What physical clearance is needed to accommodate the bit length and shank?

The bit requires sufficient spindle travel and workpiece clearance for its overall length, plus a chuck capable of opening to at least 1/2 inch to grip the reduced shank.

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