Chicago-latrobe 53914 Jobber Drill Bit 21/64 in Hss Tin

Product Description

The CHICAGO-LATROBE 53914 is a jobber-length drill bit designed for heavy-duty drilling in steel alloy and similar ferrous materials. It is manufactured from high speed steel with a titanium nitride (TiN) coating that extends cutting life and reduces friction at the cutting face. The 135-degree split point geometry allows the bit to engage the workpiece without walking, eliminating the need for a center punch in most applications. A parabolic flute profile promotes fast chip evacuation, which is critical when drilling deeper holes in tight-grained metals. This bit suits machine shops, maintenance technicians, and tradespeople running production or repair work on steel components.

The 53914 is built for use in handheld drills, drill presses, and CNC or manual lathes operating at appropriate surface speeds for HSS tooling. It is suited to right-hand rotation setups only. The 21/64-inch diameter falls in a common range for clearance holes, tapped-hole preparation, and precision fitment work. Its straight cylindrical shank seats in standard drill chucks without requiring a specialized holder, making it broadly compatible with existing shop and field equipment.

Key Features

• 135-degree split point reduces walk-off and eliminates center-punching on flat stock
• Parabolic flute profile accelerates chip evacuation in deep-hole drilling
• Titanium nitride coating increases surface hardness and extends tool life versus uncoated HSS
• Web-thinned, tapered web construction reduces thrust requirements and heat buildup
• Straight cylindrical shank fits standard 3-jaw and keyless drill chucks
• Heavy-duty grade rated for steel alloy as the primary workpiece material

Compatibility

Designed as a direct-fit replacement or general-purpose addition for any setup accepting a 21/64-inch straight cylindrical shank drill bit; part of the CHICAGO-LATROBE Series 150DHT heavy-duty TiN-coated jobber line.

Installation Notes

Installation and use should be performed by qualified machinists or tradespeople familiar with drill press or handheld drill safety procedures. Secure the workpiece firmly before drilling and ensure the chuck is fully tightened on the shank. Always wear appropriate eye protection and match spindle speed to the recommended surface footage for HSS tooling in the workpiece material. Do not run this right-hand-cut bit in reverse rotation, as it will damage the cutting edges and the TiN coating.