Chicago-latrobe 50366 Taper Length Drill Bit 76 Hss

Product Description

The CHICAGO-LATROBE 50366 is a taper length drill bit designed for precision drilling in metal fabrication and general machining applications. Built from high speed steel (HSS) with a coated finish, it measures 0.0200 inches in diameter (wire size 76) and delivers consistent performance in production and maintenance drilling. The 118-degree standard point angle suits a broad range of workpiece materials, while the web-thinned, tapered web configuration reduces thrust and improves chip clearance at entry. A right-hand spiral flute promotes efficient chip evacuation. This bit is sold individually and typically installed by machinists, tool-and-die technicians, and maintenance mechanics.

The 50366 is suited for drilling alloy steel, carbon steel, and cast iron in both shop and field maintenance settings. With a flute length of 0.3125 inches and an overall length of 1.5 inches, it fits standard drill chucks and CNC spindles that accept a straight shank. The straight shank diameter matches the bit diameter at 0.0200 inches, and the shank length measures 1.1875 inches, providing adequate grip in collet or keyless chuck setups. General-purpose performance makes this bit a practical choice for repetitive small-hole drilling in light to medium production runs.

Key Features

• Wire size 76 (0.0200 inches) diameter with tight tolerance of +0.0000 to -0.0005 inches
• High speed steel construction provides durability across alloy steel, carbon steel, and cast iron
• Coated finish for improved surface lubricity and extended service life
• 118-degree standard point angle for general-purpose entry on common ferrous materials
• Web-thinned, tapered web reduces cutting thrust and improves hole quality
• Right-hand spiral flute with regular spiral type promotes consistent chip removal

Compatibility

Designed as a general-purpose taper length drill bit compatible with standard straight-shank drill chucks, collets, and CNC spindle tooling sized for 0.0200-inch shank diameters. Rated for use in alloy steel, carbon steel, and cast iron workpieces.

Installation Notes

Installation and use of this bit should be performed by qualified machinists or maintenance technicians familiar with small-diameter tooling. Ensure the drill press, lathe tailstock, or CNC spindle is powered off and fully stopped before changing tooling. Secure the straight shank firmly in the chuck or collet to prevent slippage, which can cause bit breakage at this small diameter. Follow applicable OSHA machine guarding standards and the tool manufacturer's recommended speed-and-feed guidelines for HSS tooling in the target material.