Keo 906-000-092 Combo Drill Countersink Size 3 Hss

Product Description

The KEO 906-000-092 is a combination drill and countersink designed for simultaneous center drilling and countersinking in a single operation. Built from high-speed steel with a bright, uncoated finish, this tool features a 1/4-inch body diameter, a 7/64-inch drill point diameter, and a 118-degree drill point angle. The 60-degree included angle produces a clean countersink seat suited for flat-head fastener preparation. At 2 inches overall length, it is compact enough for use in standard drill presses, lathes, and machining centers. Machinists, tool-and-die workers, and fabricators handling metal workpieces are the primary users.

This combo drill countersink is used in metal fabrication, maintenance machining, and general shop work where center holes or countersunk seats are required before or during fastener installation. The right-hand cutting direction is standard for conventional spindle rotation. The radius cutting edge style and double end type extend tool life and allow the tool to be flipped when one end dulls, making it a practical choice for production or repair environments where downtime matters.

Key Features

• High-speed steel construction for durability across a range of ferrous and non-ferrous materials
• 118-degree drill point angle for efficient center penetration
• 60-degree included angle produces a standard countersink seat for flat-head fasteners
• Double-end design doubles usable tool life before replacement
• Radius cutting edge style reduces chipping and extends edge life
• Bright, uncoated finish allows easy visual inspection of cutting edges

Compatibility

Designed as a standard combination drill countersink for use in drill presses, lathes, and CNC machining centers that accept 1/4-inch body diameter center drill tooling.

Installation Notes

Installation and use of this tool should be performed by a qualified machinist familiar with proper workholding and spindle speed selection for the material being machined. Secure the tool firmly in the chuck or collet before operation and verify runout before cutting. Always bring the spindle to a full stop before changing or adjusting tooling. Use appropriate cutting fluid for the workpiece material to reduce heat buildup and extend tool life.