Chicago-latrobe 53906 Jobber Drill Bit 13/64 in Hss Tin

Product Description

The CHICAGO-LATROBE 53906 is a jobber-length drill bit designed for heavy-duty drilling in steel alloy and similar ferrous materials. Built from high-speed steel with a titanium nitride (TiN) coating, it delivers extended tool life and reduced friction compared to uncoated HSS bits. The 135-degree split point reduces walking on contact and lowers thrust requirements, making it well-suited for production drilling and repetitive hole-making tasks. The parabolic flute geometry clears chips efficiently, which is critical when drilling deeper holes or working in gummy alloys. Overall length is 3-5/8 inches with a 2-7/16-inch flute length, and the bit carries a diameter tolerance of -0.0007 to 0.0000 inches for consistent, accurate holes.

This bit is intended for professional metalworking applications where hole quality and bit longevity matter. It is a common choice for maintenance technicians, pipefitters, electricians, and fabricators who drill through structural steel, angle iron, plate, and similar alloy stock. The straight-cylindrical shank fits standard drill chucks without adapters, and the right-hand cut makes it compatible with any conventional drill press or handheld power drill. It is part of the Series 150DHT heavy-duty line, which targets demanding production and field service environments where a standard jobber bit would wear prematurely.

Key Features

• 135-degree split point reduces thrust and prevents bit walking on hard surfaces
• Titanium nitride (TiN) coating extends tool life and reduces heat buildup during drilling
• Parabolic flute design promotes rapid chip evacuation in deep-hole drilling
• Web-thinned, tapered web construction lowers cutting resistance in steel alloy
• Diameter tolerance of -0.0007 to 0.0000 inches ensures consistent hole sizing
• Straight-cylindrical shank fits standard 3-jaw and keyed drill chucks

Compatibility

Designed for drilling steel alloy and similar ferrous workpiece materials. Fits any drill press or handheld drill with a standard chuck capable of accepting a 13/64-inch straight shank. No specific model compatibility data was provided in the product documentation.

Installation Notes

Installation is performed by licensed tradespeople or qualified machinists using standard drill equipment. Always secure the workpiece before drilling and ensure the chuck is fully tightened before operation. Do not force the bit through hardened material at excessive feed rates, as this can chip the TiN coating and shorten tool life. Follow shop safety protocols and applicable OSHA standards when operating drill presses or handheld power tools.