Hertel 19313 Countersink 5/8 in 60 Degree 6 Flute Hss

Product Description

The HERTEL 19313 is a straight-shank countersink designed for creating conical seat chamfers in metal and other hard materials. Built from high speed steel, this tool delivers consistent cutting performance under high-friction conditions without rapid edge breakdown. The 60-degree included angle suits specific fastener seating applications where shallower countersink profiles are required. With 6 flutes, it distributes cutting load evenly, reduces chatter, and produces a smooth finish. The 1/2-inch straight-cylindrical shank fits standard drill chucks and collet holders on benchtop drill presses and machining centers. Metalworkers, machinists, and maintenance technicians install this tool wherever precision countersinking is needed.

This countersink is suited for use in machine shops, fabrication facilities, and industrial maintenance environments. It is appropriate for countersinking holes in ferrous and non-ferrous metals prior to flat-head fastener installation. The 60-degree angle is less common than 82- or 90-degree variants and is selected specifically for metric or specialty fastener applications. The 5/8-inch head diameter and 6-flute geometry make it a fit for production work where surface finish quality at the countersink seat matters.

Key Features

• High speed steel construction for durability in metal cutting applications
• 60-degree included angle for specialty and metric fastener seat preparation
• 6-flute design reduces chatter and improves surface finish
• 5/8-inch head diameter provides sufficient coverage for corresponding fastener head sizes
• Straight-cylindrical 1/2-inch shank fits standard drill chucks and collet systems
• 1-1/8-inch shank length provides adequate grip depth in toolholders

Compatibility

Designed as a direct-fit countersink for use in drill presses, CNC machining centers, and hand-held drilling equipment accepting a 1/2-inch straight-cylindrical shank. Verify that the 60-degree included angle matches the fastener specification before installation.

Installation Notes

Installation is performed by machinists or skilled tradespersons using a drill press, milling machine, or hand drill with an appropriate 1/2-inch chuck or collet. Secure the shank fully within the toolholder before operation and confirm runout is within acceptable tolerance to avoid bell-mouthing the countersink seat. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life. Always power down and de-energize the machine before changing or adjusting tooling.