Vernon CCH-CCH2770 Adjustable Depth Drill Countersink

Product Description

The VERNON CCH-CCH2770 is an adjustable depth drill countersink designed for precision holemaking in metalworking and fabrication applications. Built from high speed steel, this countersink features a 0.5 inch cutter diameter, a 90-degree included angle, and a 45-degree centerline angle for consistent, clean countersunk holes. The 0.25 inch collar thickness allows for repeatable depth control, making it a reliable choice for production work where uniform countersink depth is critical. The adjustable depth design reduces setup time and minimizes the need for repeated measuring during high-volume drilling operations.

This countersink is suited for use in machine shops, maintenance facilities, and fabrication environments where right-hand cutting tools are standard. It accommodates a Letter J drill for pilot hole compatibility and is appropriate for use in drill presses, CNC machines, and hand drilling operations on steel, aluminum, and similar materials. The 1 inch cutter head length provides adequate clearance for most standard countersinking tasks on flat and near-flat workpieces.

Key Features

• Adjustable depth collar allows repeatable countersink depth without continuous measurement
• 0.5 inch cutter diameter with 90-degree included angle for standard fastener seating
• 45-degree centerline angle for accurate positioning
• 0.25 inch collar thickness provides stable depth stop
• High speed steel construction for durability across a range of workpiece materials
• Right-hand cut compatible with standard drill press and CNC spindle rotation

Compatibility

Designed for use with a Letter J pilot drill. Fits standard countersinking applications in the holemaking category, including countersinks and sets for metalworking and fabrication use.

Installation Notes

Installation and adjustment should be performed by a qualified machinist or tool operator familiar with cutting tool safety. Secure the workpiece firmly before operation and ensure the drill press or machine spindle is fully stopped before adjusting the collar depth setting. Follow the machine manufacturer guidelines for spindle speed recommendations based on workpiece material and cutter diameter. Inspect the cutting edges for wear or damage before each use.