Hertel H-8119D063500 Spotting Drill 0.25 in Hss

Product Description

The HERTEL H-8119D063500 is a high-speed steel spotting drill designed to create accurate, center-starting divots that guide subsequent twist drills and prevent walking on flat or curved workpiece surfaces. Built with a 120-degree point angle, it seats cleanly against standard drill angles and transfers location precisely. The 0.25-inch cutting diameter pairs with a matching 0.25-inch straight cylindrical shank for direct chuck mounting without adapters. With an overall length of 2.625 inches and a 0.9-inch flute length, this tool fits standard bench-top and floor-standing drill presses as well as CNC machining centers running general-purpose work. The bright, uncoated finish suits dry or flood-coolant operations on a wide range of materials.

This spotting drill is intended for general-purpose metal-cutting environments where hole-location accuracy is critical before full-depth drilling. It performs well in job shops, maintenance and repair operations, and production settings handling steel, aluminum, brass, and similar machinable materials. The right-hand cut and spiral flutes provide smooth chip clearance in short-hole spotting applications. A web-thinned geometry reduces thrust force at initial contact, making it well-suited for hand-fed drill presses and light-duty CNC applications alike.

Key Features

• 120-degree point angle matches standard jobber drill angles for accurate pilot seating
• High-speed steel construction provides adequate heat and wear resistance for general-purpose machining
• Web-thinned tip reduces axial thrust and improves center-starting accuracy
• Spiral flutes with right-hand cut promote efficient chip evacuation during spotting
• Straight cylindrical shank fits directly into standard 3-jaw and collet chucks without adapters
• Bright uncoated finish compatible with dry cutting and most flood-coolant applications

Compatibility

Designed as a general-purpose spotting drill for use in standard drill chucks and collet holders accepting a 0.25-inch straight shank across drill press, lathe, and CNC machining center setups.

Installation Notes

Secure the shank fully in a properly sized collet or 3-jaw chuck before operation and verify runout before engaging the workpiece. Power down the machine and lock out energy sources before changing or inspecting tooling. Use appropriate cutting fluid or coolant per the workpiece material to extend tool life. Dispose of worn HSS tooling in accordance with local shop waste regulations.