Keo 906-000-176 Combo Drill Countersink Size 8 Hss

Product Description

The KEO 906-000-176 is a combination drill and countersink designed for simultaneous drilling and countersinking in a single pass. Built from high-speed steel with a bright, uncoated finish, this tool handles center drilling and chamfering operations on metal workpieces. It features a 3/4 inch body diameter, a 5/16 inch drill point diameter, and an 82-degree included angle for standard countersink geometry. The double-end design extends tool life by offering two usable cutting ends. Right-hand cut orientation suits standard drill press and lathe setups. Machinists and fabricators in metalworking and light manufacturing environments rely on this style of combo tool for efficient, accurate hole prep.

This combo drill countersink is suited for countersinking and center-drilling operations on steel, aluminum, and similar metals. The size 8 trade designation and 82-degree included angle match standard machine screw countersink requirements. The 3-1/2 inch overall length and 5/16 inch point length accommodate typical workholding setups on drill presses, lathes, and milling machines. Plain cutting edge style keeps the design straightforward for general-purpose shop use without the complexity of chip-breaker geometry.

Key Features

• High-speed steel construction provides durability and heat resistance during metal drilling operations
• Double-end design offers two cutting ends for extended tool life
• 82-degree included angle meets standard countersink geometry for machine screws
• 118-degree drill point angle for efficient center-starting on metal surfaces
• Bright uncoated finish allows straightforward inspection of tool wear and edge condition
• Right-hand cut for use with standard clockwise-rotating spindles

Compatibility

Designed as an OEM-style replacement or direct-fit combo drill countersink for size 8 applications requiring an 82-degree countersink angle and a 3/4 inch body diameter in high-speed steel.

Installation Notes

This tool is intended for use by machinists and metalworkers in drill press, lathe, or milling machine setups. Secure the workpiece firmly before operation and confirm spindle speed is appropriate for the material being drilled. Inspect both cutting ends for wear or chipping before use. Follow applicable shop safety standards and wear appropriate eye protection during all cutting operations.