Hertel 331-120060 Countersink Set 5 Pc Solid Carbide 60 Deg

Product Description

The HERTEL 331-120060 is a 5-piece solid carbide countersink set designed for chamfering operations in metal, composite, and hard material applications. The set covers head diameters from 1/4 inch to 1 inch, with all five countersinks ground to a 60-degree included angle and a single flute geometry. Solid carbide construction delivers edge retention and dimensional accuracy on demanding materials where high-speed steel tooling loses its edge prematurely. The uncoated finish keeps regrinding straightforward. This set is used by machinists, tool-and-die professionals, and precision fabricators who need consistent chamfer geometry across a range of hole sizes without tool changes between jobs.

This countersink set is suited to chamfering bolt-clearance holes, deburring through-holes, and preparing countersunk fastener seats in precision machining environments. The 60-degree included angle is a common specification for metric-style chamfering work and general deburring where a sharper entry angle is required. The set stores in a wood block for organized access at the bench or machine. Typical install scenarios include CNC machining centers, manual mills, and drill presses where a consistent chamfer profile must be held across multiple hole diameters in a single setup.

Key Features

• 5-piece set covers 1/4 inch to 1 inch head diameter range in a single kit
• 60-degree included angle on all five countersinks for consistent chamfer geometry
• Single-flute design provides clean, chatter-free cutting on solid carbide blanks
• Solid carbide construction for superior edge retention on hard and abrasive materials
• Uncoated finish simplifies regrinding and resharpening in the shop
• Wood block storage keeps the set organized and protects cutting edges between uses

Compatibility

Designed as a general-purpose chamfering countersink set compatible with standard drill press chucks, CNC spindles, and manual mill quills that accept the shank diameters included in the set. Verify spindle speed and feed rates against the workpiece material before use.

Installation Notes

Countersinks should be installed by a qualified machinist or tooling technician familiar with speeds and feeds for carbide cutting tools. Power down and de-energize the machine spindle completely before changing or seating any countersink. Inspect the shank and cutting edges for chips or cracks prior to each use. Do not exceed the recommended RPM range for solid carbide tooling in the material being cut, and never force the tool into the workpiece to compensate for a dull edge.