Hertel H-8119B111100 Spotting Drill 7/16 Inch Hss

Product Description

The HERTEL H-8119B111100 is a single-ended high speed steel spotting drill designed to accurately locate and start holes for follow-on twist drills, reamers, or other cutting tools. It features a 118-degree drill point angle, a 7/16 inch (0.4375 inch) cutting diameter, and a 2 inch overall length. The bright uncoated finish is standard for general-purpose HSS tooling used in job shop and production environments. The spiral flute geometry and web-thinned point reduce thrust and help center the tool precisely on layout marks. Machinists, tool-and-die makers, and general metalworking shops are the typical users of this type of drill.

This spotting drill is suited for general-purpose metalworking applications on ferrous and non-ferrous materials where accurate hole location is required before drilling to final size. The straight cylindrical shank mounts directly in standard drill chucks and collet holders on machining centers, drill presses, and lathes. The 1 inch flute length accommodates shallow spotting operations, keeping runout low and the tool rigid during use. It is sold individually and is intended for right-hand cutting direction.

Key Features

• 118-degree drill point angle for general-purpose spotting and hole starting
• Web-thinned point reduces axial thrust and improves centering accuracy
• High speed steel construction provides toughness across a broad range of workpiece materials
• Bright uncoated finish — no coating buildup to affect dimensional accuracy
• Spiral flute design with 2 flutes assists chip clearance during spotting operations
• Straight cylindrical shank fits standard drill chucks and ER collet holders

Compatibility

Designed as a general-purpose spotting drill for use in standard drill chucks and collet systems that accept a 7/16 inch straight cylindrical shank.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and locked out before mounting or removing the tool. Secure the straight shank firmly in a drill chuck or collet holder to the appropriate clamping torque for the holder type, following the toolholder manufacturer guidelines. Inspect the cutting edges and web for wear or damage before each use, and replace the drill if chipping or excessive wear is observed.