Hertel H-8119D158700 Spotting Drill 5/8 in Hss

Product Description

The HERTEL H-8119D158700 is a high-speed steel spotting drill designed to accurately locate and start holes before a twist drill or boring operation. With a 120-degree point angle, it creates a clean, precise center mark that guides larger drills and reduces walking on flat or contoured workpiece surfaces. The 5/8-inch cutting diameter matches the 5/8-inch straight cylindrical shank, giving machinists a solid, balanced setup in standard drill chucks or collet holders. Two spiral flutes with web thinning improve chip evacuation and reduce thrust at the cutting edge. The bright, uncoated finish is suited for general-purpose drilling in a wide range of ferrous and non-ferrous materials. This tool is installed and used by machinists, tool-and-die makers, and production drillers in job shop and manufacturing environments.

The H-8119D158700 is appropriate for CNC machining centers, knee mills, drill presses, and manual milling operations where accurate hole location is required before full-depth drilling, reaming, or tapping. The 120-degree point angle is a common standard for pre-spotting operations that use conventional jobber drills, keeping the contact geometry consistent and minimizing bell-mouthing in the finished bore. The 4.5-inch overall length provides adequate reach for most standard fixturing setups without excessive overhang. Right-hand cut direction is compatible with conventional forward-rotation spindles found on the vast majority of machining equipment.

Key Features

• 120-degree drill point angle for accurate hole location and reduced drill walking
• 5/8-inch cutting diameter with matching 5/8-inch straight cylindrical shank for balanced tool loading
• High-speed steel construction for general-purpose use across ferrous and non-ferrous workpieces
• Two spiral flutes with web thinning to reduce thrust and improve chip clearance
• Bright, uncoated finish compatible with cutting fluids and coolant applications
• Right-hand cut, single-ended design for standard forward-rotation spindles

Compatibility

Designed as a general-purpose spotting drill for use in standard drill chucks, ER collet systems, and straight-shank tool holders accepting a 5/8-inch shank diameter on CNC and manual machine tools.

Installation Notes

Installation and use of this tool should be performed by qualified machinists familiar with rotating cutting tool safety. Always power down the spindle and confirm zero RPM before inserting or removing the drill from its holder. Ensure the shank is fully seated and clamped to the manufacturer specifications of the tool holder being used. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life and maintain dimensional accuracy.