Walter-titex 5236543 Cobalt Jobber Drill Bit 3.9 Mm

Product Description

The WALTER-TITEX 5236543 is a cobalt jobber length drill bit designed for high-performance drilling in demanding materials. Built from M35 cobalt steel and finished with an AlCrN coating, this bit resists heat and wear during extended cutting operations. It features a 130-degree drill point angle with UFL point geometry and a parabolic flute design that improves chip evacuation and reduces cutting resistance. The straight-cylindrical shank measures 3.9 mm in diameter. Overall length is 2.95 inches with a flute length of 1.69 inches. Intended for use by machinists and metalworking trades requiring consistent hole quality in ferrous and non-ferrous metals.

This drill bit is suited for blind hole drilling and stack drilling applications across a range of workpiece materials including steel, stainless steel, cast iron, and non-ferrous metals. Its parabolic flute geometry and web-thinned point make it effective in production environments where chip control and tool life are priorities. The A1249XPL series is built to DIN 338 and meets ANSI and ISO standards, making it appropriate for both domestic and international specification work.

Key Features

• M35 cobalt steel construction for elevated heat and wear resistance
• AlCrN coating extends tool life in abrasive and high-temperature cutting conditions
• 130-degree drill point angle with UFL point geometry for clean entry and reduced thrust
• Parabolic flute profile promotes efficient chip evacuation in deep and stack drilling
• Web-thinned, tapered web configuration reduces cutting force at the point
• Conforms to DIN 338 specification with ANSI and ISO compliance

Compatibility

Designed for drilling into steel, stainless steel, cast iron, and non-ferrous metals. Suitable for blind hole and stack drilling applications. Compatible with standard drill chucks accepting a 3.9 mm straight-cylindrical shank.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or metalworking trades familiar with appropriate speeds and feeds for cobalt tooling. Secure the shank fully in the chuck before operation and verify runout is within acceptable limits. Do not exceed the maximum recommended drilling depth of 1.42 inches without retracting to clear chips. This bit does not support coolant-through delivery — use external coolant or cutting fluid as appropriate for the workpiece material.