Value Collection 156400004000006 Drill Countersink Hss

Product Description

The VALUE COLLECTION 156400004000006 is a combination drill and countersink designed for creating pilot holes and countersunk seats in a single pass. Built from high-speed steel with a bright, uncoated finish, this tool handles drilling and countersinking simultaneously, reducing tool changes and setup time on the bench or in the field. The 5/16-inch body diameter pairs with a 1/8-inch drill point, and the 60-degree included angle produces a standard countersink profile suited for flat-head fasteners. At 6 inches overall length, it fits standard drill chucks and milling setups used by machinists, fabricators, and maintenance technicians.

This combo drill countersink is suited for production and maintenance applications where countersunk holes for size 4 fasteners are required. The double-end configuration extends tool life by offering two usable cutting ends. The plain cutting edge style and right-hand cut make it compatible with conventional drill presses, CNC machines, and handheld power drills. It is appropriate for use in metal fabrication shops, HVAC equipment assembly, electrical panel work, and general mechanical maintenance where flush-mount fastener installations are common.

Key Features

• High-speed steel construction for durability across metal drilling applications
• 60-degree included angle for standard flat-head fastener countersinking
• Double-end design provides two cutting ends, extending tool service life
• 5/16-inch body diameter with 1/8-inch drill point for size 4 fastener pilot holes
• 6-inch overall length accommodates standard chuck and collet setups
• Bright, uncoated finish for easy visual inspection of cutting edge condition

Compatibility

Designed for use as a size 4 combo drill countersink in standard drill presses, CNC machining centers, and handheld power drills accepting a 5/16-inch shank tool body.

Installation Notes

Installation is performed by machinists, fabricators, or maintenance technicians using a drill press, milling machine, or power drill. Secure the workpiece firmly before operation and set spindle speed appropriate for the material and tool diameter per standard machining guidelines. Inspect both cutting ends for wear or chipping before use, and never apply side-loading force to the drill point. Use appropriate cutting fluid when drilling ferrous metals to maintain edge life.