Walter-titex 5062878 Micro Drill Bit 0.44mm Cobalt

Product Description

The WALTER-TITEX 5062878 is a cobalt micro drill bit engineered for precision drilling in demanding materials. Built to DIN 1899 standards, it features a 0.44 mm diameter, a 118-degree standard point angle, and a web-thinned, tapered web configuration that reduces entry force and improves centering. The M35 cobalt steel construction provides heat resistance and edge retention in high-stress applications. With a straight-cylindrical shank measuring 1.00 mm in diameter and an overall length of 25.00 mm, this bit is sized for use in precision drilling machines and CNC equipment. Licensed HVAC techs, machinists, and precision fabricators working with tight-tolerance workpieces rely on this tool for consistent hole quality.

This micro drill bit is suited for blind hole drilling, through hole drilling, and stack drilling operations. Its primary workpiece material designation covers titanium alloys and other difficult-to-machine metals, with secondary suitability for glass and graphite. The 5xD flute-to-diameter ratio supports chip evacuation in shallow-depth applications, with a maximum drilling depth of 2.20 mm. It is a strong fit for aerospace, medical device, and precision electronics manufacturing environments where sub-millimeter accuracy is required.

Key Features

• M35 cobalt construction for heat and wear resistance in titanium alloy and hard material drilling
• 118-degree standard point angle with web-thinned, tapered web for accurate entry and reduced thrust force
• Spiral flute with 5xD ratio supports chip clearing in blind and through hole applications
• Bright/uncoated finish maintains close diameter tolerance of +0.000 to -0.004 mm
• Straight-cylindrical shank at 1.00 mm diameter for secure chuck or collet holding
• Conforms to DIN 1899 specification for consistent dimensional standards

Compatibility

Designed as an OEM-style precision drill bit in the WALTER-TITEX Series A3143 product line, suitable for use in CNC drilling centers, micro-drilling machines, and precision drill presses equipped to hold a 1.00 mm straight-cylindrical shank.

Installation Notes

This tool should be installed and operated by qualified machinists or precision fabricators familiar with micro-drilling equipment. Secure the straight-cylindrical shank firmly in a compatible collet or drill chuck before operation, and verify runout is within acceptable tolerance for the application. Power down and lock out the machine spindle before changing bits. At sub-millimeter diameters, excessive feed rate or lateral force will cause bit breakage — follow machine manufacturer feed and speed recommendations for cobalt tooling in the target material.