Accupro 77712032 Carbide Drill Bit 11/64 Inch 140 Degree

Product Description

The ACCUPRO 77712032 is a solid carbide jobber length drill bit designed for precision drilling in demanding production and machining environments. Sized at 11/64 inches (0.1719 inches decimal), it features a 140-degree split point for fast, self-centering starts with minimal walking on entry. The AlTiN (aluminum titanium nitride) coating improves heat resistance and extends tool life when drilling hardened steels, stainless, and other abrasive materials. Coolant-through capability supports high-speed applications where chip evacuation and heat control are critical. Right-hand cutting geometry follows standard CNC and manual drilling conventions.

This drill bit is suited for metalworking shops, tool rooms, and production floors where tight-tolerance holes are required in hard or abrasive workpiece materials. The 5xD flute-to-diameter ratio provides sufficient flute length for moderate-depth holes without excessive deflection. Machinists, tool and die makers, and CNC operators working in aerospace, automotive, and general precision machining will find this bit appropriate for high-cycle drilling operations where carbide outlasts HSS tooling.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• AlTiN coating for elevated heat resistance and extended tool life
• 140-degree split point for self-centering entry and reduced thrust
• Coolant-through design supports chip evacuation in deep or high-speed drilling
• Right-hand cut compatible with standard CNC and manual drill setups
• 5xD flute-to-diameter ratio balances flute length with bit stiffness

Compatibility

Designed as a high-performance jobber length drill bit for use in CNC machining centers, drill presses, and manual mills where a 5.00 mm shank diameter is accepted and coolant-through toolholders are available. Fits drill size range 0.1500 to 0.2000 inches decimal.

Installation Notes

Install in a compatible collet or toolholder sized for the 5.00 mm shank and torque to the toolholder manufacturer specification. Ensure coolant-through lines are purged and flowing before engaging the cut if using the coolant-through feature. Inspect the cutting edge and coating for chips or wear before each use, as carbide is brittle and sensitive to side loading. Follow machine manufacturer feed and speed recommendations for carbide tooling in the target workpiece material.