Cleveland C16663 Jobber Drill Bit 49 Cobalt Tin 2 Inch

Product Description

The CLEVELAND C16663 is a cobalt jobber-length drill bit sized to wire gauge 49, with a decimal diameter of 0.0730 inches. It is coated with titanium nitride (TiN) for added surface hardness and extended tool life in demanding drilling applications. The bit features a 135-degree split point with web thinning for fast engagement and reduced walking on entry. With a 2-inch overall length and a parabolic flute design, this bit handles chip evacuation efficiently in deep-hole applications. It is suited for machinists, tool-and-die technicians, and maintenance trades working with ferrous metals and stainless steel.

This drill bit is designed for use in hand-held drills, drill presses, and CNC equipment where a small-diameter, high-performance bit is required. The straight-cylindrical shank seats securely in standard drill chucks without slip. The M42 cobalt material grade gives this bit a performance edge over standard high-speed steel in harder workpiece materials, including stainless steel, titanium alloys, and hardened steels. It is appropriate for production-level or precision maintenance drilling in industrial, mechanical, and trade-shop settings.

Key Features

• Wire gauge 49 size, 0.0730-inch decimal diameter with a tolerance of -0.0005 to 0.0000 inches
• M42 cobalt steel construction for heat resistance in high-speed or interrupted cuts
• Titanium nitride (TiN) coating increases surface hardness and reduces friction
• 135-degree split point with web thinning reduces thrust and eliminates center-punch requirements on most materials
• Parabolic flute geometry improves chip evacuation in deep-hole drilling
• Straight-cylindrical shank compatible with standard drill chucks
• Conforms to ASME B94.11M and DIN 338 standards

Compatibility

Designed for use with standard drill chucks accepting straight-cylindrical shanks in the 0.0730-inch diameter range. Part of the Cleveland Series 2075T jobber-length cobalt drill bit line.

Installation Notes

Secure the shank fully in the drill chuck and verify concentricity before starting the cut. Use appropriate cutting fluid or coolant when drilling hardened or stainless steel to manage heat buildup, even though this bit does not support through-coolant delivery. Follow machine manufacturer speed and feed recommendations for the workpiece material and drill diameter. Wear appropriate eye and hand protection per applicable shop safety standards.