Walter-titex 5060576 Cobalt Jobber Drill Bit 3.9 Mm

Product Description

The WALTER-TITEX 5060576 is a cobalt, oxide-coated jobber length drill bit designed for high-performance drilling in demanding materials. Built to Series A1247 specifications, this 3.9 mm (0.1535 inch) diameter bit features a 130-degree drill point angle, a parabolic flute geometry, and a web-thinned, tapered web configuration that improves chip evacuation and reduces thrust force. The straight-cylindrical shank measures 0.1535 inch in diameter and 1.26 inches in length. Overall length is 2.9531 inches (75 mm). Licensed machinists, maintenance technicians, and metalworking professionals install this bit in standard drill chucks and CNC machining centers where precision hole quality in hard materials is required.

This bit is rated for blind hole drilling and stack drilling applications. Primary workpiece materials include cast iron, non-ferrous metals, stainless steel, carbon and alloy steel, and superalloys and titanium, corresponding to ISO material codes K, M, N, P, and S. The flute-to-diameter ratio is 8xD with a maximum drilling depth of 36 mm (1.417 inches) and a flute length of 43 mm (1-11/16 inches). The oxide coating aids lubricity and heat resistance during aggressive cuts. This bit does not support coolant-through operation.

Key Features

• Cobalt construction with oxide coating for heat resistance in hard and abrasive materials
• 130-degree split point reduces walking and lowers entry thrust on hard workpieces
• Parabolic flute profile improves chip flow in deep and stacked drilling setups
• Web-thinned, tapered web reduces cutting force and improves centering
• 8xD flute-to-diameter ratio supports drilling to 36 mm depth
• Meets ANSI, ISO, BS, and DIN standards; diameter tolerance h8

Compatibility

Designed for use in standard drill chucks and CNC holders accepting a 0.1535-inch straight-cylindrical shank. Suitable for blind hole and stack drilling operations in cast iron, non-ferrous metal, stainless steel, steel, and superalloys and titanium as specified by the manufacturer for Series A1247.

Installation Notes

Installation is performed by machinists or maintenance technicians using a standard drill chuck or collet rated for the 0.1535-inch shank diameter. Secure the workpiece and power down the machine before changing bits. Verify chuck runout before drilling in tight-tolerance applications. Do not exceed the rated maximum drilling depth of 36 mm without retracting to clear chips.