Walter-titex 7577857 Micro Drill Bit 1/16 in Solid Carbide

Product Description

The WALTER-TITEX 7577857 is a solid carbide micro drill bit designed for precision drilling in demanding industrial and machining applications. Built to DIN 6535 HA standards, it features an AlCrN coating that extends tool life when drilling abrasive and hard materials. The 140-degree drill point angle provides aggressive cutting action and accurate entry, while the right-hand cutting direction suits standard CNC and manual spindle setups. At 2.126 inches overall length with a 0.551-inch flute length, this bit is configured for high-precision micro-hole work where dimensional accuracy is critical. Machinists and toolroom professionals are the primary users of this drill bit.

This drill bit is suited for blind hole, stack drilling, and through-hole drilling operations. Primary workpiece materials include cast iron, non-ferrous metals, stainless steel, and steel. Secondary applications cover cobalt, glass, graphite, iron alloys, nickel, titanium, and titanium alloys. The 5xD flute-to-diameter ratio and coolant-through design make it a practical choice for production environments where chip evacuation and heat management at small diameters are priorities.

Key Features

• Solid carbide construction for rigidity and wear resistance in micro-diameter drilling
• AlCrN coating improves heat resistance and extends tool life in hard and abrasive materials
• 140-degree drill point angle for precise entry and reduced thrust in tough alloys
• Coolant-through design supports effective chip evacuation and thermal control at depth
• Straight-cylindrical shank (0.118 inches diameter) per DIN 6535 HA for reliable tool holding
• Compatible with blind hole, stack drilling, and through-hole applications

Compatibility

Designed for use in CNC machining centers and drill presses that accept a straight-cylindrical shank with a 0.118-inch shank diameter per DIN 6535 HA. Suitable for primary workpiece materials including cast iron, non-ferrous metal, stainless steel, and steel, as well as secondary materials such as cobalt, glass, graphite, iron alloys, nickel, titanium, and titanium alloys.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians using a compatible tool holder rated for the shank diameter and speed requirements of the application. Ensure the spindle and tool holder are clean and free of runout before seating the shank. Power down and lock out the machine before inserting or removing the bit. Follow shop-specific feeds-and-speeds data for the workpiece material - do not exceed the rated maximum drilling depth of 11 millimeters without confirming chip evacuation and coolant flow.