Chicago-latrobe 49513 Taper Length Drill Bit 13/64 in

Product Description

The CHICAGO-LATROBE 49513 is a taper length twist drill bit designed for general-purpose hole-making in ferrous metals and hard materials. Manufactured from high speed steel with a coated finish, it measures 13/64 inch (0.2031 inches) in diameter and runs an overall length of 6 inches. The 118-degree standard point angle suits a wide range of materials and is a familiar geometry for most trade and shop applications. A web-thinned, tapered web configuration reduces thrust at the point and improves chip evacuation. Right-hand spiral flutes move chips away from the cutting edge during operation. This bit is part of the Series 255AN line and is intended for use by machinists, maintenance technicians, and metalworking tradespeople.

This drill bit is suited for drilling into alloy steel, carbon steel, cast iron, and tool steel in production and maintenance settings. The taper length body provides additional reach beyond a standard jobber bit without the deflection risk of an extra-long series bit. The tanged shank is sized at 0.2031 inches in diameter and is compatible with drill presses, milling machine setups, and hand-held power drills where a tanged drive is appropriate. With a flute length of 3-5/8 inches and a shank length of 2.375 inches, it is well suited for moderately deep hole applications where chip clearance matters.

Key Features

• 13/64 inch (0.2031 inches) diameter with a diameter tolerance of +0.0000 to -0.0007 inches for consistent fit
• High speed steel construction handles alloy steel, carbon steel, cast iron, and tool steel
• 118-degree standard point angle is a versatile geometry across general metalworking tasks
• Web-thinned tapered web reduces cutting resistance and improves point stability
• Right-hand spiral flute design promotes efficient chip removal during drilling
• Tanged shank provides positive drive engagement and resists slippage under load

Compatibility

Designed for general-purpose drilling in alloy steel, carbon steel, cast iron, and tool steel. Suitable for use with drill presses and power drilling equipment that accept a tanged round shank in the 0.2031-inch diameter range.

Installation Notes

Installation and use of this bit should be performed by qualified machinists or maintenance tradespeople familiar with metal drilling procedures. Secure the workpiece firmly before drilling and ensure the drill press or tool is powered down and locked out before bit changes. Use appropriate cutting fluid or coolant when drilling harder steel grades to extend tool life. Do not exceed the recommended feed rate for the material being drilled, as excessive force can chip the point or cause premature wear.