Walter-titex 5062913 Micro Drill Bit 0.79 Mm Cobalt 118 Point

Product Description

The WALTER-TITEX 5062913 is a cobalt micro drill bit designed for precision drilling in demanding materials at very small diameters. It measures 0.79 mm (0.0311 inches) in diameter with a 1.00 mm straight-cylindrical shank and an overall length of 25.00 mm. The 118-degree standard point angle and web-thinned, tapered web configuration promote accurate entry and reduce thrust in hard or abrasive workpieces. A spiral flute with a 5xD flute-to-diameter ratio provides chip evacuation in short, controlled drilling cycles. This bit is part of the Series A3143, manufactured to DIN 1899 standards, and is sized for work that requires tight tolerances and consistent hole geometry.

This micro drill bit is engineered for blind hole, through hole, and stack drilling applications. The primary workpiece material rating covers titanium alloy and similar high-strength alloys (material codes K, N, P, S). Secondary workpiece suitability includes glass and graphite (material codes M, O). Its cobalt construction gives it elevated heat resistance for use in materials that generate high cutting temperatures. Typical users include precision machinists, aerospace fabricators, and tool-and-die shops working with small-diameter hole requirements in difficult materials.

Key Features

• Cobalt tool material for high heat resistance in titanium alloy and abrasive workpiece materials
• 118-degree standard point angle with web-thinned, tapered web for accurate positioning and reduced thrust
• Bright/uncoated finish maintains dimensional consistency without coating buildup at micro diameters
• Diameter tolerance of +0.000 to -0.004 mm for tight, repeatable hole geometry
• Spiral flute, right-hand cut with 5xD flute ratio for effective chip evacuation in short drill depths
• Conforms to DIN 1899 specification for standardized micro drill geometry

Compatibility

Designed as an OEM-specification micro drill bit per DIN 1899 for use in precision drilling operations on titanium alloy, glass, and graphite workpieces where small-diameter, controlled-depth holes are required.

Installation Notes

This micro drill bit is installed by machinists and precision tool operators using a compatible collet or chuck sized for a 1.00 mm shank diameter. Ensure the spindle and workpiece holding fixture are secure before operation, as micro drill bits are sensitive to runout and lateral loading. Maximum drilling depth is 4.10 mm; exceeding this depth risks flute clogging and bit breakage. Coolant through is not supported on this bit, so external lubrication or dry cutting per material recommendations should be followed.