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Chicago-Latrobe

Chicago-Latrobe 55449 49/64 in 118° Silver & Deming Drill 1/2 Reduced Shank

SKU CH-QSJV-3MC1H

Silver & Deming drill bit with 49/64 inch diameter, 118-degree point angle and 1/2-inch reduced shank for large-hole drilling

  • Product typeDrill Bits
  • 49/64 inch diameter drills large holes
  • 118-degree point angle centres quickly in metal
  • Black oxide finish resists wear and corrosion
  • High-speed steel construction handles tough machining
  • 1/2 inch reduced shank fits standard chucks

Chicago-Latrobe 55449 Silver & Deming Drill

This Chicago-Latrobe 55449 drill bit is a Silver & Deming style tool designed for creating 49/64 in holes. The 118 degree point angle suits general-purpose drilling in metal. A 1/2 reduced shank allows use with standard drill chucks. It is made from high speed steel with a black oxide finish.

Suits 1/2 chuck jobs; not for larger shanks

This bit suits machinists and maintenance technicians who need a 49/64 in hole using a drill with a 1/2 in chuck capacity. The reduced shank bridges the size gap effectively. It is not for users whose equipment requires a shank larger than 1/2 in. Buyers needing different diameters or point angles should select another bit.

49/64 in diameter with 1/2 reduced shank

The defining specification is the 49/64 in cutting diameter paired with a 1/2 in reduced shank. This combination determines whether the bit fits your chuck and produces the required hole size. Verify both the shank compatibility and the target diameter before ordering. The 118 degree point and high speed steel construction support general machining tasks.

How it compares

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

Price $23.99
Cheaper than about 57% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE
Product typeDrill Bits

Questions about this item

What chuck size is required to hold the 1/2 reduced shank on the 55449 drill bit?

A 1/2 inch or larger drill chuck is needed to secure the reduced shank on this bit.

How does the 118 degree point angle on the 55449 compare to standard twist drills when drilling mild steel?

The 118 degree point is a general-purpose angle suitable for mild steel, offering easier centring than flatter angles.

How can I verify the 49/64 inch diameter is cutting true after installing the 55449?

Measure the resulting hole with a calibrated gauge; a true-cut hole will match the 49/64 inch nominal size within normal tolerance.

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