Keo 01031582 Hss Combo Drill Countersink Set 8 Pc

Product Description

The KEO 01031582 is an 8-piece high speed steel combo drill and countersink set covering trade sizes 1 through 8. Each tool combines a twist drill point with a 60-degree included-angle countersink in a single body, eliminating the need to swap tools when drilling and countersinking in one operation. The plain-edge cutting geometry suits a wide range of materials encountered in production and maintenance work. Machinists, tool-and-die tradespeople, and maintenance technicians keep sets like this on hand for repetitive fastener prep work on metal, wood, and composite materials.

This set is suited for use in machine shops, fabrication environments, and maintenance facilities where countersunk fastener holes are a routine requirement. The graduated size range from trade size 1 through 8 gives the technician coverage across the most common countersunk screw and fastener diameters. The 60-degree included angle matches standard flat-head machine screw seat geometry widely used in metalworking applications.

Key Features

• 8-piece set covering trade sizes 1 through 8 in a single package
• High speed steel construction for hardness and wear resistance across common workpiece materials
• 60-degree included angle matches standard flat-head fastener seat geometry
• Plain-edge cutting profile for general-purpose countersinking
• Combo drill and countersink design performs both operations without a tool change

Compatibility

Designed as a general-purpose combo drill and countersink set compatible with standard drill press chucks, CNC machining center toolholders, and hand-held drill drivers that accept straight-shank tooling across the trade size 1 to 8 range.

Installation Notes

Installation and use of combo drill countersinks is performed by machinists or maintenance technicians operating drill presses, lathes, or hand-held power drills. Secure the workpiece firmly before beginning to prevent tool deflection and ensure accurate seat geometry. Run speeds appropriate to the workpiece material and tool diameter; consult a standard machining speeds-and-feeds reference when working with harder materials. Inspect each tool for chipping or wear before use and replace any damaged tools in the set.