Vernon CCH-CCH1490 Drill Countersink 5/16 in Hss

Product Description

The VERNON CCH-CCH1490 is an adjustable depth drill countersink designed for precision holemaking in metal and similar materials. Built from high speed steel, this tool combines drilling and countersinking in a single pass. It features a 5/16 inch cutter diameter, a 90-degree included angle, and a 45-degree centerline angle, making it well suited for creating clean, properly angled seat profiles for flathead fasteners. The adjustable collar, measuring 1/4 inch in thickness, allows the operator to set countersink depth consistently across repeated operations without re-measuring each time.

This countersink is used in metal fabrication, mechanical assembly, and general machining applications where consistent countersink depth is required. It is compatible with a No. 25 drill and features right-hand cutting action. The 7/16 inch cutter head diameter and 5/8 inch cutter head length allow the tool to seat flush fasteners in sheet metal, structural components, and machined parts. Machinists, pipefitters, and maintenance technicians working in trade and industrial settings will find this tool appropriate for production and field use.

Key Features

• Adjustable depth collar (1/4 inch thickness) for repeatable countersink depth control
• High speed steel construction for durability in metal cutting applications
• 90-degree included angle for standard flathead fastener seating
• Right-hand cutting direction for use with conventional drill presses and hand drills
• 5/8 inch cutter head length provides adequate reach for most sheet and plate applications
• Single-tool operation combines drilling and countersinking in one pass

Compatibility

Designed for use with a No. 25 drill. Suitable as an adjustable depth countersink for standard holemaking operations in metal fabrication and mechanical assembly environments.

Installation Notes

This tool is installed in a drill chuck by a machinist or qualified tradesperson using a drill press or hand-held power drill. Ensure the machine is powered off and the chuck is fully secured before beginning operation. Set the adjustable collar to the desired depth before starting the cut, and verify the workpiece is clamped securely to prevent movement during countersinking.