Keo 906-000-133 Combo Drill Countersink Size 5 Hss

Product Description

The KEO 906-000-133 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 features a 7/16-inch body diameter and a 3/16-inch drill point diameter. The 118-degree drill point angle is suited for general-purpose metalworking and fabrication. With an overall length of 2.75 inches and a right-hand cutting direction, this tool fits standard drill chucks and is sized for trade size 5 applications. It is used by machinists, fabricators, and maintenance tradespeople working with metal stock, sheet goods, and structural components.

This combination drill countersink is well suited for countersinking screw seats, preparing holes for flat-head fasteners, and center-drilling operations in metal fabrication and maintenance environments. The 90-degree included angle and plain cutting edge style make it appropriate for common countersink work on steel and similar materials. It is designed for use in drill presses, milling machines, and hand-held power tools in shop and field settings.

Key Features

• Combination drill and countersink completes drilling and countersinking in a single operation
• High-speed steel construction provides durability across general metalworking applications
• 118-degree drill point angle for general-purpose center drilling and countersinking
• 90-degree included angle suits standard flat-head fastener countersink geometry
• Right-hand cutting direction compatible with standard drill rotation
• Bright, uncoated finish with no additional coating for straightforward regrinding

Compatibility

Designed as a trade size 5 combination drill countersink for general metalworking, fabrication, and maintenance applications requiring a 7/16-inch body diameter and 3/16-inch drill point.

Installation Notes

Installation and use of this tool should be performed by qualified machinists or tradespeople familiar with rotary cutting tools. Secure the workpiece properly before operation and confirm the tool is firmly seated in the drill chuck or collet before applying power. Always wear appropriate eye protection and follow applicable shop safety protocols when operating drilling or milling equipment. Inspect the cutting edges for wear or damage before each use and do not use a damaged tool.