Keo 906-000-296 Combo Drill Countersink Size 5 Hss

Product Description

The KEO 906-000-296 is a combination drill and countersink tool designed to perform two operations in a single pass: drilling a pilot hole and cutting an 82-degree countersink in one setup. Built from high-speed steel (HSS) with a titanium carbonitride (TiCN) finish, the tool offers improved wear resistance and extended tool life compared to uncoated HSS. It features a 5/16 inch body diameter, a drill point diameter of 0.1270 inches, and an overall length of 1-3/4 inches. The right-hand cut, plain cutting edge style, and single-end configuration suit standard machine shop and fabrication workflows. Machinists and metalworkers install this tool in drill presses, lathes, and CNC machines.

This combo drill countersink is suited for countersinking and drilling applications in metalworking environments, including job shops, production lines, and maintenance facilities. Trade size 5 designates the body diameter and is a standard sizing reference in combo drill countersink tooling. The 82-degree included angle is the standard angle for flat-head fastener seats used in aircraft-style and general-purpose metalwork. The 11/32 inch drill point length and 7/8 inch shank length support consistent seating and stable chucking in standard toolholders.

Key Features

• Combination drill and countersink performs drilling and countersinking in a single operation
• High-speed steel construction with TiCN coating for extended wear resistance
• 82-degree included angle matches standard flat-head fastener countersink geometry
• Right-hand cut, plain cutting edge for use in conventional rotating setups
• Single-end tool with 5/16 inch body diameter and 7/8 inch shank length
• Compact 1-3/4 inch overall length for use in tight-clearance chucking setups

Compatibility

Designed as an OEM-style replacement or direct-fit combo drill countersink for standard drill press, lathe, and CNC machine toolholders accepting a 5/16 inch body diameter shank.

Installation Notes

Installation is performed by machinists or toolroom technicians. Secure the shank firmly in the machine chuck or collet before operating. Ensure the workpiece is clamped and the machine is at the appropriate speed for the material being cut before engaging the tool. Do not exceed the rated cutting capacity of the tool or use in rotating directions other than right-hand cut.