Chicago-latrobe 50320 Taper Length Drill Bit 0.1285 in

Product Description

The CHICAGO-LATROBE 50320 is a taper length drill bit designed for general-purpose drilling in metal and ferrous materials. Built from high speed steel with a coated finish, this bit features a 118-degree standard point angle and a web-thinned, tapered web configuration that reduces entry force and helps center the point at the start of a cut. The straight shank measures 0.1285 inches in diameter, matching the wire size 30 designation. A spiral flute with a 3-inch flute length and right-hand cut completes the geometry, making this a reliable production drilling tool for shop and field use alike.

This bit is suited for drilling alloy steel, carbon steel, and cast iron in both maintenance and production environments. The taper length body provides greater reach than a jobber-length bit without the flex of a long series, making it a practical choice when working through thicker stock or in applications where a standard-length bit falls short. It installs in any drill press, hand drill, or machining center fitted with a straight-shank collet or chuck appropriate for the 0.1285-inch shank diameter.

Key Features

• Wire size 30 diameter - 0.1285 inches - with a tight tolerance of +0.0000 to -0.0007 inches
• High speed steel construction with coated finish for extended wear life
• 118-degree standard point angle for general-purpose metal drilling
• Web-thinned, tapered web reduces thrust and improves centering
• Right-hand spiral flute, 3-inch flute length, overall length 5-3/8 inches
• Straight shank - no threads - for standard drill chucks and collet holders

Compatibility

Rated for drilling alloy steel, carbon steel, and cast iron. Fits any standard straight-shank drill chuck or collet accepting a 0.1285-inch shank diameter. Part of the CHICAGO-LATROBE Series 120 taper length program.

Installation Notes

A licensed machinist or qualified tradesperson should secure the shank fully in a properly sized chuck or collet before operation. Verify spindle speed is appropriate for the workpiece material and bit diameter before starting the cut. Coolant through is not supported on this bit, so apply cutting fluid at the point of entry when drilling ferrous materials to manage heat buildup. Inspect the cutting edges for wear or chipping before each use and replace if the point geometry is compromised.