Accupro 4500199 Jobber Drill Bit 25/64 Inch Solid Carbide

Product Description

The ACCUPRO 4500199 is a solid carbide jobber-length drill bit designed for precision drilling in aluminum and non-ferrous materials. Ground to a 118-degree point angle with a proprietary point geometry, this bit delivers clean entry and accurate hole placement without walking. The DLC (diamond-like carbon) coating reduces friction and heat buildup, extending tool life in high-cycle production environments. At 5.3594 inches overall length with a 3.1563-inch flute, it provides the reach and chip clearance needed for standard jobber-depth applications. Licensed machinists and tool-and-die professionals will find this bit well-suited to both manual and CNC setups. Coolant-through capability supports high-feed-rate drilling in production conditions.

This drill bit is intended for use in aluminum, copper, brass, and other non-ferrous workpiece materials where carbide grade and DLC coating provide a measurable performance advantage over high-speed steel alternatives. The straight cylindrical shank fits standard drill chucks and collet systems without modification. It is commonly used in machine shops, aerospace component work, and general metalworking operations requiring consistent hole diameter at 0.3906 inches. The 5xD flute-to-diameter ratio supports chip evacuation in moderately deep holes without requiring peck cycles in most non-ferrous materials.

Key Features

• Solid carbide construction for rigidity and wear resistance in non-ferrous drilling
• DLC coating reduces friction and extends tool life in high-cycle applications
• 118-degree point angle with proprietary point type for accurate, self-centering entry
• Coolant-through design supports high-feed-rate and deep-hole drilling operations
• Right-hand cutting, regular spiral flute with 5xD flute-to-diameter ratio for efficient chip clearance
• Straight cylindrical shank at 0.3906 inches for compatibility with standard chucks and collets

Compatibility

Designed for use with standard drill chucks and collet systems accepting a straight cylindrical shank at 0.3906 inches diameter. Primary workpiece material compatibility is aluminum and non-ferrous metals per manufacturer specification.

Installation Notes

Installation and use should be performed by qualified machinists or tooling professionals familiar with CNC or manual drill press setups. Secure the shank fully in the chuck or collet before operation and verify runout before beginning a production run. When using coolant-through capability, confirm that the machine spindle coolant supply is active and at adequate pressure before engaging the cut. Do not use this bit on ferrous metals, hardened steel, or materials outside the rated workpiece category, as doing so will damage the cutting edge and void tool performance.