Guhring 9064000017000 Micro Drill Bit 1.70mm 140pt Carbide

Product Description

The GUHRING 9064000017000 is a solid carbide micro drill bit designed for precision drilling in demanding industrial and machining applications. Built to Series 6400 specifications, it carries a wire gauge size of 51 and a decimal inch diameter of 0.0669 inches (1.70 mm). The 140-degree faceted point geometry reduces walking and improves hole entry accuracy. A TiAlN coating increases surface hardness and heat resistance, extending tool life in high-speed and dry-cutting conditions. The overall length is 47 mm with a flute length of 10.20 mm, and the shank diameter measures 3.00 mm with a straight-cylindrical profile. This drill is suited for CNC machining centers and precision drilling equipment.

This micro drill bit is intended for use on cast iron, stainless steel, and steel as primary workpiece materials, with secondary capability in aluminum and titanium alloys. Its web-thinned point reduces thrust force and is well suited for tight-tolerance hole work in precision manufacturing, tool and die, and aerospace component production. The 4xD flute-by-diameter ratio and regular spiral flute type support efficient chip evacuation in shallow-to-moderate depth drilling. Maximum drilling depth is 8.10 mm (0.3190 inches). Coolant-through is not supported. Right-hand cutting direction is standard. The shank diameter tolerance is rated m7 per ISO standards, ensuring consistent fit in collets and chucks.

Key Features

• Solid carbide construction using K40 material grade for hardness and wear resistance
• TiAlN coating for extended tool life in ferrous and high-temperature alloy applications
• 140-degree faceted point with web thinning to reduce entry thrust and improve hole accuracy
• Straight-cylindrical 3.00 mm shank with m7 diameter tolerance for precise tool-holder fit
• Series 6400 design with 4xD flute ratio for efficient chip evacuation
• Compatible with cast iron, stainless steel, steel, aluminum, and titanium alloy workpieces

Compatibility

Designed as an OEM-style replacement drill bit within the GUHRING Series 6400 micro drill line, sized for use in standard straight-bore collets and chucks accepting a 3.00 mm straight-cylindrical shank. Primary workpiece materials include cast iron, stainless steel, and steel; secondary materials include aluminum and titanium alloys.

Installation Notes

Installation and use of this micro drill bit should be performed by qualified machinists or tooling technicians familiar with CNC or precision drilling equipment. Verify that the spindle and collet are clean and within tolerance before seating the shank. Coolant-through is not supported on this model; use appropriate external coolant or dry-cutting practices as required by the workpiece material. Follow machine manufacturer guidelines for speed and feed settings appropriate to 1.70 mm carbide tooling.