Walter-titex 5062839 Micro Drill Bit Cobalt 0.0020 in

Product Description

The WALTER-TITEX 5062839 is a cobalt micro drill bit engineered for precision drilling in demanding materials at extremely small diameters. Built to DIN 1899 standards, this 0.0020 inch (0.05 mm) diameter bit features an M35 cobalt material grade, a 118-degree standard point angle, and a web-thinned, tapered web configuration that reduces thrust during entry. At 25 mm overall length with a 0.30 mm flute length and a maximum drilling depth of 0.20 mm, this tool is designed for controlled micro-drilling operations where dimensional accuracy and edge integrity are critical. The bright/uncoated finish suits applications where coating interaction with the workpiece material is a concern.

This drill bit is suited for blind hole, through hole, and stack drilling operations on titanium alloy as the primary workpiece material, as well as secondary materials including glass and graphite. Its straight-cylindrical shank measures 1.00 mm in diameter, making it compatible with precision collet chucks used in CNC machining centers, drill presses, and micro-drilling fixtures. The right-hand spiral flute geometry promotes chip evacuation in tight bores. This bit is typically installed and used by machinists and tool-and-die professionals working in aerospace, medical device, or electronics manufacturing environments where tight tolerances are standard.

Key Features

• M35 cobalt construction for heat resistance and durability in hard and abrasive materials
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• DIN 1899 specification compliance for consistent dimensional standards
• Right-hand spiral flute promotes chip evacuation in blind and through hole applications
• Bright/uncoated finish compatible with titanium alloy, glass, and graphite workpieces
• Drill bit diameter tolerance of +0.000 to -0.004 mm for precise bore sizing

Compatibility

Designed for use in blind hole, through hole, and stack drilling of titanium alloy (material codes K, N, P, S) and secondary materials including glass and graphite (material codes M, O), per the Series A3143 specification.

Installation Notes

Installation and use of this micro drill bit should be performed by qualified machinists familiar with precision tooling and micro-drilling setups. Ensure the machine spindle is fully stopped and all power is removed before loading or unloading the bit from the collet or chuck. At 0.05 mm diameter, this tool is extremely fragile — confirm runout on the collet and spindle is within tolerance before use to avoid immediate breakage. Do not use this bit in hand-held or non-precision drilling equipment.