Sandvik Coromant 8173223 Micro Drill Bit 0.09mm Carbide

Product Description

The SANDVIK COROMANT 8173223 is a solid carbide micro drill bit designed for precision drilling in demanding metalworking applications. Part of the CoroDrill 862 series, it features a 140-degree point angle and a TiAlN Lite coating that extends tool life in high-speed and dry cutting conditions. The through-coolant design channels fluid directly to the cutting edge, improving chip evacuation and reducing heat buildup. With an overall length of 2.40 mm and a spiral flute configuration, this bit is engineered for tight-tolerance, small-diameter holes where accuracy and repeatability are critical. It is installed and used by machinists and tooling professionals in CNC drilling operations.

This micro drill bit is suited for drilling steel and stainless steel workpieces, classified under ISO material groups P and M. The 9XD flute-to-diameter ratio supports deeper hole drilling relative to the 0.09 mm diameter, making it appropriate for precision component manufacturing, medical device machining, electronics fabrication, and other applications requiring micro-scale hole geometry. The straight-cylindrical shank with a 0.1181-inch shank diameter provides secure, repeatable chuck retention in compatible collet or drill chuck setups.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• TiAlN Lite coating improves heat resistance and extends tool life in steel and stainless steel
• 140-degree point angle reduces thrust force and improves centering accuracy
• Through-coolant capability supports chip evacuation and thermal control at the cutting edge
• 9XD flute-to-diameter ratio enables deeper drilling relative to bit diameter
• Right-hand spiral flute design for standard CNC and manual drilling setups

Compatibility

Designed for use with steel and stainless steel workpieces (ISO material groups P and M) as part of the SANDVIK COROMANT CoroDrill 862 series for through-coolant micro drilling applications.

Installation Notes

Installation and use of micro drill bits should be performed by qualified machinists or tooling technicians familiar with CNC or precision drilling equipment. Secure the straight-cylindrical shank in a properly sized collet or drill chuck rated for the shank diameter before operation. Verify that the machine spindle and coolant delivery system are correctly configured for through-coolant tooling before engaging the coolant supply. Handle carbide tooling with care to avoid chipping the cutting edge during setup or storage.