Hertel H-8119C0635055 Spotting Drill 1/4 in 90 Deg Hss

Product Description

The HERTEL H-8119C0635055 is a high-speed steel spotting drill designed to accurately locate and start holes before standard twist drilling operations. Ground to a 90-degree point angle, this tool creates a precise center dimple that guides following drills and reduces walking on flat or curved workpiece surfaces. The 0.25-inch cutting diameter and straight cylindrical shank of matching 0.25-inch diameter make it compatible with standard drill chucks and collet holders. At 5.5 inches overall length with a 0.87-inch flute length, it fits bench drill presses, CNC machining centers, and manual mill setups. The bright uncoated finish is suitable for general-purpose machining in a range of ferrous and non-ferrous materials.

This spotting drill is used in machine shops, fabrication facilities, and maintenance environments where accurate hole location is required before drilling, reaming, or tapping. The right-hand spiral flute geometry with two flutes provides efficient chip evacuation during the spotting pass. The web-thinned construction at a web thickness of 0.025 inches reduces thrust and improves centering performance. It is appropriate for use on drill presses, manual mills, and CNC machining centers handling general-purpose production or repair work.

Key Features

• 90-degree point angle for accurate hole location and reduced drill walking
• High-speed steel construction for general-purpose machining applications
• Bright uncoated finish compatible with most cutting fluids and materials
• Web-thinned design reduces thrust and improves center accuracy
• Two spiral flutes promote chip clearance during spotting operations
• Straight cylindrical shank fits standard chucks and collet systems

Compatibility

Designed as a general-purpose spotting drill for use with standard 1/4-inch drill chucks and collet holders on bench drill presses, manual mills, and CNC machining centers.

Installation Notes

Installation and operation should be performed by a qualified machinist or toolroom technician. Secure the straight shank firmly in a drill chuck or collet holder and verify concentricity before running. Power down the machine and lock out the spindle before changing or inspecting the tool. Use appropriate cutting fluid for the workpiece material to maintain tool life and surface finish quality.