Keo 907-000-122 Combo Drill Countersink Size 4 Hss

Product Description

The KEO 907-000-122 is a combination drill and countersink designed to perform drilling and countersinking in a single operation. Built from high-speed steel with a bright, uncoated finish, this tool features a 5/16-inch body diameter, a 1/8-inch drill point diameter, and a 118-degree drill point angle. The 82-degree included angle is sized for standard flat-head fastener countersinking. At 6 inches overall length, it qualifies as a long-length tool, providing reach in deeper setups. It is suited for metalworking, fabrication, and general machining operations where combined drilling and countersinking are required in one pass.

The 907-000-122 is a Trade Size 4 combination tool intended for use on drill presses, lathes, and CNC machining centers. Its right-hand cut and plain cutting edge style make it compatible with standard right-hand spindle setups. The double end type provides two usable cutting ends, extending tool life between replacements. This tool is appropriate for job shops, maintenance facilities, and production environments working with ferrous and non-ferrous metals.

Key Features

• Combines drilling and countersinking in a single pass, reducing setup time
• High-speed steel construction provides durability across a range of workpiece materials
• Double-end design offers two usable cutting ends for extended service life
• 118-degree drill point angle suits general-purpose drilling applications
• 82-degree included angle matches standard flat-head fastener countersink geometry
• 6-inch overall length classified as a long-length tool for added reach

Compatibility

Designed as a standard Trade Size 4 combination drill countersink for use in right-hand spindle machines including drill presses, lathes, and CNC machining centers where combined drilling and countersinking operations are performed.

Installation Notes

Installation is performed by machinists or tooling technicians using standard drill chuck or collet setups. Ensure the spindle is fully stopped and the machine is powered down before changing or inspecting tooling. Verify that spindle rotation direction is set to right-hand before engaging the tool. Follow applicable shop safety standards and machine manufacturer guidelines for tooling installation and speed selection.