Walter-titex 5062905 Micro Drill Bit Wire 70 Cobalt

Product Description

The WALTER-TITEX 5062905 is a cobalt micro drill bit designed for precision drilling in demanding materials including titanium alloy, glass, and graphite. Built to DIN 1899 standards, this wire-size #70 bit has a decimal inch diameter of 0.0280 inches and an overall length of 25 mm. The 118-degree standard point with web thinning and a tapered web configuration promotes accurate entry and reduces thrust force in tough substrates. The spiral flute geometry and right-hand cut make this bit suitable for blind hole, through hole, and stack drilling applications. It is intended for use by machinists and tooling professionals working in precision manufacturing environments.

This micro drill bit is suited for small-diameter drilling operations in tight-tolerance work, particularly when machining titanium alloys or non-metallic materials such as glass and graphite. The straight-cylindrical shank fits standard collet chucks and drill presses used in precision machine shops. With a flute length of 4.80 mm and a maximum drilling depth of 3.60 mm, it is optimized for shallow, controlled penetration typical of micro-hole applications. The Series A3143 designation places it within a cobalt tooling line engineered for rigidity and wear resistance at small diameters.

Key Features

• Cobalt construction provides wear resistance and heat tolerance in hard or abrasive workpiece materials
• Wire size #70 with 0.0280-inch decimal diameter for tight-tolerance micro drilling
• 118-degree standard point angle with web thinning for reduced entry thrust
• Spiral flute with right-hand cut supports chip evacuation in blind and through hole drilling
• Straight-cylindrical shank compatible with standard collet and drill chuck tooling
• Conforms to DIN 1899 specification for consistent dimensional accuracy

Compatibility

Designed for use in CNC machining centers, drill presses, and precision hand-held drilling equipment accepting a 1.00 mm straight-cylindrical shank. Rated for primary workpiece materials including titanium alloy and compatible with secondary materials such as glass and graphite per material codes K, N, P, S, M, and O.

Installation Notes

Installation and use should be performed by qualified machinists or tooling technicians familiar with micro-diameter tooling. Secure the shank fully in the collet or chuck before operation and verify runout is within tolerance to prevent bit deflection or breakage at this diameter. Always power down and lock out spindle rotation before changing tooling. Diameter tolerance for this bit is plus 0.000 to minus 0.004 mm, so verify fitment with gauge pins when tight tolerances are required.