Hertel 334-207060 Countersink 5/8 in 82 Deg 4 Flute Carbide

Product Description

The HERTEL 334-207060 is a solid carbide countersink designed for producing accurately angled seat profiles in metal, composites, and other hard materials. Built with a 5/8 inch head diameter and an 82-degree included angle, it conforms to the geometry required for 82-degree flat-head fastener applications common in aerospace, metalworking, and general machining. The straight-cylindrical shank measures 5/8 inch in diameter for direct chuck or collet holding. Four flutes provide a balance of chip evacuation and surface finish quality across a range of workpiece materials. This tool is intended for use by machinists and toolroom technicians operating drill presses, CNC machining centers, or manual mills.

This countersink is suited for production and maintenance machining environments where consistent countersink depth and angle are required. The 82-degree angle matches the seating geometry of standard flat-head machine screws and aerospace fasteners. Typical applications include deburring drilled holes and producing flush-mount fastener seats in ferrous and non-ferrous metals. The carbide construction makes it appropriate for harder workpiece materials and higher-cycle operations where high-speed steel tooling would wear prematurely.

Key Features

• 82-degree included angle matches standard flat-head screw seating geometry
• 5/8 inch head diameter provides sufficient countersink reach for common fastener sizes
• Solid carbide construction for extended tool life in hard and abrasive materials
• 4-flute design balances chip clearance with finish quality
• Straight-cylindrical shank for direct clamping in standard chucks or collets

Compatibility

Designed as an OEM-style replacement or direct-use countersink for machining setups requiring an 82-degree, 5/8 inch head diameter carbide tool with a straight-cylindrical shank. Verify spindle collet or chuck capacity accepts a 5/8 inch shank before installation.

Installation Notes

Installation is performed by machinists using a drill press, manual mill, or CNC machining center. Secure the straight shank firmly in a properly sized collet, end mill holder, or drill chuck before operation. Ensure the spindle is fully stopped and the machine is powered down before inserting or removing the tool. Follow shop-standard speeds and feeds for carbide tooling in the specific workpiece material to avoid chipping the cutting edges.