Accupro 4500169 Solid Carbide Jobber Drill 13/32 in

Product Description

The ACCUPRO 4500169 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding materials. Sized at 13/32 inch (0.4062 inch decimal) with a 5-7/8 inch overall length, this bit features a TiAlN coating that extends tool life by reducing heat buildup and friction at the cutting edge. The 140-degree split point angle with R-thinned web geometry allows for fast penetration and reduced walking on entry. It is intended for use by machinists and metalworking trades who require consistent hole quality at elevated feed and speed parameters.

This drill bit is optimized for stainless steel as its primary workpiece material, making it well-suited for fabrication, maintenance, and production drilling applications where tool wear and heat generation are primary concerns. The 3-5/16 inch flute length provides adequate chip clearance in deeper holes. With a straight cylindrical shank measuring 27/64 inch in diameter, it seats securely in standard drill chucks and collet holders used in both manual and CNC setups. Coolant-through capability supports through-spindle coolant delivery for extended tool life in production environments.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• TiAlN coating reduces heat buildup and extends cutting edge life
• 140-degree point angle with R-thinned web for reduced thrust and improved centering
• Coolant-through design supports internal coolant delivery in CNC applications
• Right-hand cutting, regular spiral flute for efficient chip evacuation
• 5xD flute-to-diameter ratio suits standard jobber-length drilling applications

Compatibility

Designed for use in drilling stainless steel and similarly hard or work-hardening metals. The 27/64 inch straight cylindrical shank is compatible with standard drill chucks and collet systems that accept that shank diameter. Suitable for CNC machining centers, drill presses, and manual mills where through-spindle or flood coolant is available.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or metalworking professionals familiar with carbide tooling. Carbide is brittle - avoid side loading, interrupted cuts without proper setup, and dropping or impact contact that can chip the cutting edge. Ensure the shank is fully seated and properly clamped in the toolholder before operation. When using coolant-through capability, confirm the machine spindle and toolholder are rated and configured for internal coolant delivery.