Hertel H-81196030000 Spotting Drill 3mm 120 Pt Cobalt

Product Description

The HERTEL H-81196030000 is a cobalt M-35 (HSS-E) spotting drill designed to accurately locate and start holes before a follow-up twist or indexable drill. The 120-degree point angle centers cleanly on flat and slightly curved surfaces, reducing walk and improving positional accuracy. At 3 mm cutting diameter with a straight-cylindrical shank, it fits standard drill chucks and collet holders. The bright, uncoated finish is suited for general-purpose applications where the inherent heat resistance of cobalt M-35 steel provides adequate tool life without an additional coating. Machinists and tool-and-die technicians commonly use this drill on CNC machining centers and manual mills.

This spotting drill is intended for general-purpose hole starting in a wide range of materials. Its 2-inch overall length and 0.4-inch spiral flute length make it a compact tool appropriate for close-clearance setups. The right-hand cut geometry is compatible with standard spindle rotation. It is suited for use in job shop, production, and maintenance machining environments where consistent, accurate hole location is required before full-depth drilling operations.

Key Features

• 120-degree point angle for accurate hole spotting and center-starting
• Cobalt M-35 (HSS-E) tool material provides elevated heat and wear resistance over standard HSS
• Web-thinned construction reduces thrust and improves chip flow
• Spiral flute design with 2 flutes aids chip evacuation during spotting
• Bright uncoated finish for general-purpose use across common workpiece materials
• Straight-cylindrical shank seats in standard drill chucks and ER collets

Compatibility

Designed as a general-purpose spotting drill for use in standard drill chucks and straight-shank collet holders accepting a 3 mm shank diameter.

Installation Notes

This tool is installed and serviced by machinists and CNC operators. Secure the shank fully in the collet or chuck before running the spindle, and verify runout is within acceptable limits for the application. Use appropriate cutting fluid or dry-cutting practice per the workpiece material. Inspect the cutting edges for wear or chipping before each use and replace the tool when point geometry degrades to avoid inaccurate hole placement.