FANAR DIN 335-D 90° HSS Countersink 37 mm

The FANAR DIN 335-D 90° HSS countersink with a 37 mm diameter is a professional-grade cutting tool engineered for high-precision chamfering and deburring tasks. Manufactured from high-speed steel (HSS), this tool is designed to provide clean, accurate 90-degree bevels on a wide range of metal surfaces. Its robust construction ensures stability and longevity, making it an essential component for industrial machining and metalworking environments where consistent results are required.

Advantages

This countersink offers exceptional durability due to its high-speed steel composition, which maintains cutting edge integrity even during intensive use. The 90-degree geometry is optimized for creating precise chamfers, effectively removing burrs and preparing holes for countersunk screws or bolts. Its design facilitates efficient material removal, reducing cycle times and improving the overall quality of the finished workpiece. The tool is built to withstand the rigors of professional metalworking, ensuring reliable performance across various drilling applications.

Suitable for

• Chamfering holes in metal plates and components
• Deburring edges after drilling operations
• Preparing surfaces for flat-head screw installation
• Industrial metalworking and machining projects

When it may not be suitable

This tool is not intended for use on extremely hardened steels or specialized alloys that require carbide-tipped tooling. It may also be unsuitable for handheld drilling applications where stability cannot be maintained, as the large 37 mm diameter requires a rigid setup to prevent chatter.

Key specifications

• Material: High-speed steel (HSS)
• Angle: 90 degrees
• Diameter: 37 mm
• Standard: DIN 335-D

How to use

To achieve the best results, secure the workpiece firmly in a vice or fixture to prevent vibration. Insert the countersink into a stable drill press or milling machine collet. Align the tool precisely with the hole to be chamfered. Apply a steady, controlled feed rate while using appropriate cutting fluid to manage heat and extend the tool's lifespan. Ensure the rotational speed is adjusted according to the material being processed to avoid overheating the cutting edges.

What to consider before purchase

• Verify that your machine spindle can accommodate the shank size of the tool
• Ensure the 37 mm diameter is appropriate for the size of the holes you intend to chamfer
• Check that your equipment has sufficient power to drive a tool of this diameter

Usage recommendations

Always use a suitable cutting oil or coolant during operation to minimize friction, prevent chip welding, and ensure a smooth surface finish. Regularly inspect the cutting edges for signs of wear and sharpen or replace the tool as necessary to maintain precision.