Walter-titex 7577886 Micro Drill Bit 0.061 in Solid Carbide

Product Description

The WALTER-TITEX 7577886 is a solid carbide micro drill bit designed for precision small-diameter drilling in demanding industrial applications. At 0.061 inches in diameter with a 140-degree point angle and an AlCrN (aluminum chromium nitride) coating, this bit delivers extended tool life and consistent performance in hard and abrasive workpiece materials. The through-coolant design channels cutting fluid directly to the tip, reducing heat buildup and improving chip evacuation during deep or high-cycle drilling operations. Overall length is 2.362 inches with a straight-cylindrical shank conforming to DIN 6535 HA. This tool is installed and operated by machinists and tool-and-die professionals working in precision machining environments.

The 7577886 is suited for blind hole, stack drilling, and through-hole drilling operations. It performs across a wide range of primary workpiece materials including cast iron, non-ferrous metals, stainless steel, and steel. Secondary workpiece compatibility extends to cobalt, glass, graphite, iron alloys, nickel, titanium, and titanium alloys. The 8xD flute-to-diameter ratio supports drilling depths up to 15.00 mm, making it a capable choice for microdrilling applications where diameter tolerance and hole quality are critical. Right-hand cut geometry suits standard spindle rotation on CNC machining centers and drill presses.

Key Features

• Solid carbide construction provides rigidity and wear resistance at small diameters
• AlCrN coating improves thermal resistance and extends cutting edge life in ferrous and exotic materials
• Through-coolant capability directs fluid to the cutting zone for reduced heat and improved chip removal
• 140-degree point angle reduces thrust force and improves centering on entry
• Straight-cylindrical shank meets DIN 6535 HA standard for consistent clamping in collet chucks
• 8xD flute ratio supports maximum drilling depth of 15.00 mm

Compatibility

Designed for use in blind hole, stack drilling, and through-hole drilling applications in cast iron, non-ferrous metal, stainless steel, steel, cobalt, glass, graphite, iron alloys, nickel, titanium, and titanium alloys. Part of the WALTER-TITEX Series DB133-08-A1.

Installation Notes

Installation and operation of this tool should be performed by qualified machinists familiar with CNC or manual drilling equipment. Ensure the spindle and coolant system are powered down and depressurized before changing tooling. Secure the straight-cylindrical shank in a compatible collet or chuck rated for the shank diameter before applying cutting loads. Verify through-coolant connections are properly sealed and that coolant pressure is set per machine specifications before beginning drilling cycles.