Chicago-latrobe 49704 Taper Length Drill Bit 1/16 in Hss

Product Description

The CHICAGO-LATROBE 49704 is a taper length, high speed steel (HSS) twist drill bit designed for general-purpose drilling in metal and ferrous materials. It features a 1/16 inch (0.0625 inch) diameter with a 118-degree standard point angle and a coated finish to extend cutting life. The spiral flute geometry is regular, and the web is thinned with a tapered web configuration to reduce thrust and improve chip evacuation. Right-hand cutting direction and a straight shank make it compatible with standard drill chucks. This bit is sized for precision work in tight tolerances, with a diameter tolerance of +0.0000 to -0.0005 inches.

The 49704 is suited for drilling alloy steel, carbon steel, and cast iron in fabrication, maintenance, and light manufacturing environments. The 3-inch overall length and 1-3/4 inch flute length give the bit enough reach for taper-length applications where a standard-length bit falls short. It is typically used by machinists, maintenance technicians, and metalworking professionals working with drill presses, lathes, or hand-held power drills requiring a small-diameter, high-precision bit. The Series 120 designation identifies it within the CHICAGO-LATROBE general-purpose taper length line.

Key Features

• 118-degree standard point angle for general-purpose entry into steel and cast iron
• Coated high speed steel construction for improved wear resistance
• Web-thinned, tapered web configuration reduces drilling thrust
• Regular spiral flute promotes consistent chip removal
• Diameter tolerance of +0.0000 to -0.0005 inches for precision hole sizing
• Straight shank fits standard drill chucks without adapters

Compatibility

Designed for drilling alloy steel, carbon steel, and cast iron. Fits standard straight-shank drill chucks accepting 1/16 inch (0.0625 inch) shanks. Part of the CHICAGO-LATROBE Series 120 taper length general-purpose line.

Installation Notes

Install and remove this bit only when the drill press, lathe, or power tool is fully powered down and the chuck is secured. Use appropriate cutting fluid or coolant for the workpiece material to maximize bit life, particularly when drilling steel. Verify chuck jaw condition before use to ensure concentricity at this small diameter. Discard the bit if the cutting edges show chipping or if the shank shows signs of slippage damage.