Walter-titex 5062921 Micro Drill Bit 0.87 Mm Cobalt A3143

Product Description

The WALTER-TITEX 5062921 is a cobalt micro drill bit engineered for precision drilling in demanding materials. With a 0.87 mm diameter (0.0343 decimal inch), a 118-degree standard point angle, and a web-thinned, tapered web configuration, this bit delivers controlled entry and reduced thrust in small-diameter applications. The bright/uncoated cobalt construction resists heat buildup when drilling hard alloys. Overall length is 25 mm, flute length is 6 mm, and maximum drilling depth is 4.5 mm. It conforms to DIN 1899 standards and belongs to Series A3143. Licensed machinists and tool-and-die professionals are the primary installers of this type of tooling.

This micro drill bit is designed for blind hole, stack drilling, and through-hole drilling operations. Its primary workpiece material is titanium alloy, with secondary suitability for glass and graphite. The 1.50 mm straight-cylindrical shank seats securely in standard collet chucks and micro drill chucks. The spiral flute geometry, with a 5xD flute-by-diameter ratio and right-hand cut, clears chips efficiently in tight-tolerance holes. This bit is suited for precision manufacturing, aerospace component fabrication, and any application requiring consistent sub-1 mm hole geometry.

Key Features

• Cobalt construction for elevated heat resistance when drilling titanium alloy and hard materials
• 118-degree standard point angle with web-thinned, tapered web for reduced thrust and clean entry
• DIN 1899 specification compliance ensures dimensional consistency and interchangeability
• Straight-cylindrical 1.50 mm shank fits standard collet and micro drill chuck systems
• Right-hand spiral flute with 5xD ratio promotes efficient chip evacuation in deep micro holes
• Bright/uncoated finish maintains sharp cutting geometry without coating buildup at micro scale

Compatibility

Rated for primary use in titanium alloy workpieces and secondary use in glass and graphite. Material codes K, N, P, and S cover the primary material group; M and O cover secondary materials per standard material classification. Designed for use in any CNC machining center, drill press, or precision hand tool accepting a 1.50 mm straight-cylindrical shank.

Installation Notes

This tooling should be installed and operated by qualified machinists or tooling professionals familiar with micro-diameter drill bit handling. Always power down and lock out the spindle before changing tooling. Secure the shank fully in a properly sized collet to prevent runout, which is especially critical at sub-1 mm diameters. Do not exceed the rated maximum drilling depth of 4.5 mm, and use appropriate cutting speeds and feeds for the workpiece material per the manufacturer tooling data.