Walter-titex 5062922 Cobalt Micro Drill Bit 0.0346 in

Product Description

The WALTER-TITEX 5062922 is a cobalt micro drill bit engineered for precision drilling in demanding materials. With a 0.0346-inch diameter and a 118-degree standard point angle, it delivers accurate entry and consistent hole geometry at small scales. The bright, uncoated cobalt construction offers heat resistance and edge retention suitable for hard and abrasive workpieces. Overall length is 25 mm with a 6 mm flute length and a maximum drilling depth of 4.50 mm (0.200 inches). A tapered web with web-thinning geometry reduces thrust force and minimizes walking on entry. This bit is installed and used by machinists, toolroom technicians, and precision fabricators working in production or prototype environments.

This micro drill bit is designed for blind hole, through hole, and stack drilling applications. Primary workpiece materials include titanium alloys, and it is also suited for glass and graphite. The Series A3143 design conforms to DIN 1899 standards, making it appropriate for precision work where tight tolerances and small-diameter hole requirements are critical. The straight-cylindrical shank with a 1.50 mm diameter seats securely in standard collet chucks and precision drill chucks used in CNC machining centers, drill presses, and hand-held precision tools.

Key Features

• 0.0346-inch (0.88 mm) diameter with diameter tolerance of +0.000 to -0.004 mm for precise hole sizing
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• Cobalt tool material with bright, uncoated finish for heat resistance in hard and abrasive materials
• Right-hand spiral flute design promotes chip evacuation in blind and through hole drilling
• Maximum drilling depth of 4.50 mm at a 5xD flute-to-diameter ratio
• Conforms to DIN 1899 specification for consistent interchangeability

Compatibility

Designed for use in titanium alloys, glass, and graphite workpieces. Fits standard collet chucks and precision drill chucks accepting a 1.50 mm straight-cylindrical shank. Suitable for CNC machining centers and precision drilling equipment requiring DIN 1899 Series A3143 micro drill bits.

Installation Notes

Micro drill bits of this diameter require a precision collet or drill chuck rated for small-diameter tooling; standard keyless chucks may not provide adequate runout control. Power down the machine and follow lockout/tagout procedures before changing tooling. Use appropriate spindle speeds and feed rates for the workpiece material to avoid bit breakage at this diameter. Handling with care is essential, as cobalt micro drills are brittle and susceptible to breakage from lateral loading or improper chuck seating.