Sandvik Coromant 8173244 Micro Drill Bit 0.111in Carbide

Product Description

The SANDVIK COROMANT 8173244 is a solid carbide micro drill bit from the CoroDrill 862 series, designed for high-precision drilling in demanding production environments. It measures 0.1110 inches in diameter with a 140-degree drill point angle and features a TiAlN Lite coating for extended tool life in abrasive and heat-intensive applications. The straight-cylindrical shank diameter of 0.1181 inches fits standard collet and drill chuck setups. With through-tool coolant capability and a spiral flute design, this bit is built for controlled chip evacuation in tight, deep-hole work. Machinists and tool-room operators working in CNC machining centers and precision drilling operations are the primary users.

The CoroDrill 862 series is suited for drilling steel and stainless steel in high-volume production and precision job-shop environments. The 9xD flute-to-diameter ratio supports a maximum drilling depth of 0.9921 inches, making it appropriate for deep micro-hole applications where chip packing and heat buildup are concerns. Right-hand cutting direction is standard for conventional spindle rotation. This bit is a fit for applications requiring tight diameter tolerances and consistent hole quality in P and M material groups per ISO classification.

Key Features

• 0.1110 inch drill diameter with 140-degree split point for accurate entry and reduced thrust
• TiAlN Lite coating improves wear resistance and heat tolerance in steel and stainless steel
• Through-tool coolant compatible for effective heat management and chip evacuation in deep holes
• Spiral flute design with 9xD ratio supports maximum drilling depth of 0.9921 inches
• Straight-cylindrical shank at 0.1181 inches diameter for standard collet compatibility
• Right-hand cutting direction for standard CNC and manual spindle operation

Compatibility

Designed for use with steel (ISO material group P) and stainless steel (ISO material group M) workpieces. Part of the SANDVIK COROMANT CoroDrill 862 series for micro-diameter precision drilling applications.

Installation Notes

Installation and use should be performed by qualified machinists familiar with CNC or manual drilling operations. Ensure the spindle and workpiece are fully secured before engaging the drill. Verify coolant line pressure and flow rate are appropriate for through-tool coolant operation before running the cycle. Inspect the cutting edge under magnification before each use, as micro drill bits at this diameter are sensitive to edge chipping and runout.