Precision Twist Drill 5996114 No. 48 Cobalt Drill Bit

Product Description

The PRECISION TWIST DRILL 5996114 is a screw machine length cobalt drill bit in wire gauge size No. 48 (0.076 inches decimal). Designed for high-performance drilling in hard and difficult-to-machine materials, this bit features a 135-degree split point that reduces walking on entry and lowers the thrust required to start a hole. The overall length is 1-11/16 inches with an 11/16-inch flute, and the flute-to-diameter ratio is 2.5xD. The straight cylindrical shank and web-thinned, tapered web construction make this a purpose-built tool for production and maintenance drilling applications. This is a single-piece package sold in minimum quantities of 12.

This bit is suited for use in hard materials where standard high-speed steel tooling dulls prematurely. The screw machine length profile provides rigidity in short-reach setups, making it well suited for drill press work, CNC turret drilling, and manual machine operations where compact tooling is preferred. Machinists, maintenance technicians, and tool-and-die professionals commonly use this size for tapping prep, small fastener clearance holes, and precision drilling in steel, stainless, and other ferrous alloys.

Key Features

• Wire gauge No. 48 size, 0.076-inch decimal diameter for precision small-hole drilling
• Cobalt (M41 grade) construction for extended tool life in hard and abrasive materials
• 135-degree split point reduces thrust and eliminates center punch requirement on most metals
• Screw machine length (1-11/16 inches OAL) provides rigidity and control in tight setups
• Web-thinned tapered web improves chip evacuation and reduces heat buildup
• Right-hand cut with straight cylindrical shank for compatibility with standard drill chucks and collets
• Meets ANSI standards; rated heavy duty for demanding production environments

Compatibility

Designed as a standard screw machine length drill bit with a straight cylindrical shank, this bit is compatible with any drill chuck or collet rated for 0.076-inch shanks in drill presses, CNC machines, and hand-held power tools.

Installation Notes

This bit is installed and replaced by machinists, maintenance technicians, and toolroom professionals. Secure the shank fully in the chuck or collet and verify runout before beginning a cut. Use appropriate cutting fluid or coolant when drilling hard ferrous materials to extend tool life and control heat. Inspect the cutting edges for wear regularly, especially in high-cycle production use.