Walter-titex 5236426 Screw Machine Drill Bit 4.2 Mm

Product Description

The WALTER-TITEX 5236426 is a cobalt screw machine length drill bit designed for high-performance drilling in demanding materials. It measures 4.2 mm in diameter with an overall length of 55 mm (approximately 2.17 inches) and features a 130-degree conical point with U-tip geometry for accurate entry and reduced walking. The parabolic flute design promotes efficient chip evacuation, and the web-thinned, tapered web configuration reduces thrust load at the cutting edge. This bit is suited for shop use in metalworking environments where consistent, repeatable hole quality is required in tough workpiece materials.

This drill bit is rated for use in cast iron, non-ferrous metals, stainless steel, and steel. The screw machine length format — shorter overall length for rigidity — makes it well suited for CNC machining centers, drill presses, and turret lathes where stub-length tooling improves runout control. The straight-cylindrical shank (4.2 mm diameter) fits standard collets and chucks sized for the same diameter. Right-hand cut direction is standard. Maximum drilling depth is 15 mm (approximately 0.59 inches), and the flute length is 22 mm (approximately 0.87 inches).

Key Features

• Cobalt tool material for heat and wear resistance in hard and abrasive materials
• 130-degree conical plus U-point geometry for self-centering entry and reduced thrust
• Parabolic flute profile with web thinning for improved chip flow and lower feed force
• Screw machine (stub) length for enhanced rigidity and reduced deflection
• Right-hand cut, straight-cylindrical shank with h8 diameter tolerance for accurate chuck fit
• Conforms to DIN 1897 and ISO standards; Series A1149XPL

Compatibility

Designed as an OEM-style replacement or direct application bit for machining cast iron, non-ferrous metals, stainless steel, and steel in CNC and manual drilling operations requiring screw machine length tooling in the 3.50 mm to 5.00 mm diameter range.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Secure the shank fully in the collet or drill chuck before operation and verify runout with a dial indicator when precision is required. Power down and lock out the machine before changing or inspecting tooling. Do not exceed the rated maximum drilling depth of 15 mm per pass without retracting to clear chips.