Walter-titex 5062866 Micro Drill Bit Wire 82 Cobalt

Product Description

The WALTER-TITEX 5062866 is a cobalt micro drill bit engineered for precision drilling in demanding materials. Built to M35 material grade cobalt, it delivers heat resistance and edge retention well beyond standard high-speed steel tooling. The bit carries a wire gauge size of 82, corresponding to a decimal diameter of 0.0126 inches, with a 118-degree standard point angle and a web-thinned, tapered web configuration that reduces thrust load at entry. Overall length is 25 mm with a 1.00 mm straight-cylindrical shank. This tool is intended for use by machinists and CNC operators working in production or job-shop environments where tight tolerances and small-diameter drilling are routine.

The 5062866 is rated for blind hole, through hole, and stack drilling applications. Its primary workpiece material is titanium alloy, with secondary suitability for glass and graphite. The spiral flute geometry with a 5xD flute-to-diameter ratio clears chips efficiently in shallow cuts, with a maximum drilling depth of 1.80 mm. The bright, uncoated finish makes tool wear easy to inspect between runs. This bit conforms to DIN 1899 specification, making it a standard-compliant choice for metric tooling programs.

Key Features

• M35 cobalt construction for elevated heat and wear resistance in hard and abrasive materials
• Wire size 82 diameter, 0.0126 inches, with tight tolerance of +0.000 to -0.004 mm
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• Right-hand spiral flute, 5xD ratio, supports blind hole, through hole, and stack drilling
• 1.00 mm straight-cylindrical shank for compatibility with standard collets and chucks
• Conforms to DIN 1899; bright, uncoated finish for easy visual inspection

Compatibility

Designed as an OEM-style replacement or standard tooling option for precision drilling setups requiring DIN 1899 compliant micro drill bits in wire size 82 with a straight-cylindrical shank.

Installation Notes

Installation and use of this tool should be performed by qualified machinists familiar with micro-diameter drilling procedures. Secure the shank fully in a collet or drill chuck rated for 1.00 mm shanks before operation, and verify runout with a dial indicator when tolerances are critical. Power down the machine and confirm zero spindle speed before bit changes. Avoid side loading or peck drilling depths beyond the rated 1.80 mm maximum to prevent bit deflection or breakage.