Chicago-latrobe 53153 Taper Shank Drill Bit 53/64 in Hss 3MT

Product Description

The CHICAGO-LATROBE 53153 is a taper shank drill bit engineered for general-purpose drilling in metal, wood, and composite materials. Built from high speed steel with an oxide finish, it delivers consistent performance in demanding shop and field applications. The bit measures 0.8281 inches (53/64 inch) in diameter with a 118-degree standard point angle and a web-thinned tip that reduces entry force and improves chip evacuation. At 10.75 inches overall length with a 6.125-inch spiral flute, it provides the reach and chip clearance needed for deep-hole work in production and maintenance environments. Licensed machinists, tool and die technicians, and industrial maintenance crews are the primary installers.

This drill bit is suited for right-hand, clockwise drilling operations in stationary drill presses, radial arm drills, and milling machines equipped with a No. 3 Morse taper spindle. It fits standard 3MT spindles and sleeves without adapters, making it a straightforward drop-in for shops already running Morse taper tooling. General-purpose designation means it performs across a broad range of workpiece materials at standard cutting speeds. It does not support coolant-through delivery, so flood or mist coolant applied externally is appropriate for heat management in harder materials.

Key Features

• 53/64 inch (0.8281 inch) diameter with a tight tolerance of +0.0000 to -0.0012 inches for precise hole sizing
• No. 3 Morse taper shank seats directly in 3MT spindles and drill press quills
• 118-degree standard point angle with web thinning for reduced thrust and cleaner entry
• High speed steel construction with oxide finish for lubricity and corrosion resistance
• Regular spiral, right-hand cutting flute at 6.125 inches for effective chip removal
• General-purpose Series 110 designation suitable for a wide range of materials and feed rates

Compatibility

Designed for use in drill presses, radial arm drills, and milling machines fitted with a No. 3 Morse taper (3MT) spindle or sleeve.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with Morse taper tooling. Power down and lock out the machine before seating or removing the taper shank. Clean the spindle bore and taper shank with a lint-free cloth before insertion to ensure full contact and prevent slippage. Use a drift key in the spindle slot to eject the bit safely — never strike the bit directly to remove it.