Hertel 300-003003 Combo Drill Countersink 1/8 in Solid Carbide

Product Description

The HERTEL 300-003003 is a combo drill countersink designed for precision drilling and countersinking in a single pass. Built from solid carbide, this tool handles hard and abrasive materials where high-speed steel would wear prematurely. It features a 1/8 inch body diameter, a 3/64 inch drill point diameter, a 3/64 inch drill point length, and a 90-degree included angle. The double end type extends tool life by offering two usable ends. Overall length is 1-1/2 inches. Right-hand cutting direction is standard for conventional CNC and manual drill press setups. Machinists and tool operators in fabrication, aerospace, and general manufacturing use this type of countersink for creating accurate chamfered seat profiles for flathead fasteners.

This combo drill countersink is suited for precision machining operations where a countersink and pilot hole are required in one operation. The plain cutting edge style and non-tapered body make it well-matched to close-tolerance work in metalworking and production environments. Trade size 1 designates its position in the standard countersink numbering system. It is a single-piece, individually packaged tool.

Key Features

• Solid carbide construction for superior hardness and wear resistance in demanding materials
• Combo drill and countersink in one tool reduces setup time and tool changes
• 90-degree included angle for standard flathead fastener seating
• Double end design provides two cutting ends per tool
• Right-hand cut compatible with standard spindle rotation on CNC machines and drill presses
• Plain cutting edge style for clean, consistent chamfer profiles

Compatibility

Designed as a standard trade size 1 combo drill countersink suitable for use in CNC machining centers, manual mills, and drill presses configured for right-hand cutting tools with 1/8 inch shank or body diameter capacity.

Installation Notes

This tool is installed by machinists or tool and die operators in machine shop environments. Secure the tool firmly in the appropriate collet or chuck before operation and verify spindle rotation is set to right-hand before engaging the workpiece. Use appropriate cutting fluid for the material being machined to extend tool life and maintain cut quality. Inspect both cutting ends for chipping or wear before each use, as solid carbide tools can fracture if run at incorrect speeds or feeds.