Accupro 63309942 Solid Carbide Jobber Drill Bit No 25

Product Description

The ACCUPRO 63309942 is a solid carbide jobber-length drill bit sized to No. 25 wire gauge (0.1495 inches decimal equivalent). It features a 140-degree notched split point for fast penetration and reduced walking on entry, and an AlTiN (aluminum titanium nitride) coating that extends tool life in abrasive and hard-material applications. The overall length is 2.5 inches with a flute length of 0.85 inches and a 3/16-inch straight cylindrical shank. Right-hand spiral fluting with a regular helix handles chip evacuation cleanly. This bit is specified for precision drilling in metalworking, machining, and fabrication environments and is typically installed by machinists, tool-and-die workers, and maintenance mechanics.

The 63309942 is suited for drilling ferrous and non-ferrous metals, hardened steels, stainless, cast iron, and similarly demanding workpiece materials where standard high-speed steel bits wear prematurely. The web-thinned parallel web construction reduces thrust requirements and keeps the cut centered. With a 4xD flute-to-diameter ratio and a maximum drilling depth of 0.68 inches, this bit is sized for through-hole and blind-hole work in moderate-depth applications on CNC machining centers, drill presses, and hand-held pneumatic or electric drills where concentricity and surface finish matter.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• AlTiN coating improves heat resistance and extends tool life at higher cutting speeds
• 140-degree notched split point reduces entry thrust and minimizes drill walk
• Web-thinned parallel web lowers cutting resistance and improves chip flow
• Straight cylindrical shank (3/16 inch) fits standard drill chucks and collets
• Right-hand regular spiral flute provides efficient chip evacuation in through and blind holes

Compatibility

Designed as an OEM-style replacement or direct-fit solid carbide jobber drill bit for applications requiring No. 25 wire-size (0.1495 inch) tooling in standard 3/16-inch straight-shank drill chucks and collets.

Installation Notes

This bit is a precision cutting tool intended for use by qualified machinists and metalworking professionals. Secure the shank fully in the chuck or collet and verify runout before cutting. Always power down or de-energize the machine spindle completely before changing tooling. Carbide is brittle — avoid lateral loading, interrupted cuts at steep angles, or drop impacts that can chip the cutting edges.