Hertel H-81195100000 Spotting Drill 10mm 90 Degree Cobalt

Product Description

The HERTEL H-81195100000 is a spotting drill designed to create accurate center marks and lead-in points before standard twist drilling operations. Built from Cobalt M-35 (HSS-E) tool steel, it delivers improved heat and wear resistance compared to standard high-speed steel, making it suitable for tougher workpiece materials including stainless steel and alloy steels. The drill features a 90-degree point angle, a 10 mm cutting diameter, and an overall length of 3.5 inches. The bright, uncoated finish and web-thinned geometry reduce entry thrust and help the tool self-center cleanly on flat or curved surfaces. Machinists, tool-and-die workers, and metalworking tradespeople are the primary installers and operators of this tool.

The H-81195100000 is suited for general-purpose spotting applications in job shop, production, and maintenance machining environments. It is used on vertical machining centers, knee mills, drill presses, and CNC turning centers where precise hole location is required before drilling, countersinking, or boring operations. The right-hand cutting direction and straight cylindrical shank allow it to seat directly in standard drill chucks or collet holders without adapters.

Key Features

• Cobalt M-35 (HSS-E) construction for elevated heat and wear resistance
• 90-degree point angle for accurate spotting and center-starting
• Web-thinned geometry reduces axial thrust at entry
• Spiral flute design with 2 flutes promotes chip clearance
• Bright, uncoated finish compatible with a wide range of cutting fluids
• Straight cylindrical shank fits standard drill chucks and collet systems

Compatibility

Designed as a general-purpose spotting drill for use in standard drill chucks and collet holders accepting a 10 mm straight cylindrical shank across a range of manual and CNC machining equipment.

Installation Notes

Install in a properly sized collet or drill chuck and verify runout before use. Secure the workpiece firmly to prevent movement during spotting. Apply appropriate cutting fluid for the workpiece material to extend tool life and maintain point geometry. Inspect the cutting edges for wear or chipping before each use, and replace the tool if the point shows signs of deformation.