FANAR drill bit POGLEBIACZ DIN 335-C 20.5 mm HSSE

FANAR POGLEBIACZ DIN 335-C 20.5 mm HSSE is a countersink drill bit produced to DIN 335-C standards and made of high-speed steel with cobalt (HSSE). Designed for metalworking, this 20.5 mm tool combines cutting hardness and heat resistance to perform drilling and countersinking operations on various metal substrates. It is suitable for use in drilling machines and other metalworking equipment that accept DIN 335-C tooling and is intended to create precise counterbores and chamfers.

Advantages

The HSSE material provides increased wear resistance and improved performance at elevated cutting temperatures compared with standard high-speed steel. Manufactured to DIN 335-C dimensional and geometric specifications, the tool ensures consistent fit and function in compatible fixtures and holders. Its 20.5 mm diameter offers a balance between chip removal capacity and accuracy for medium-sized countersinks, and the design supports stable cutting action and repeatable results in production and workshop settings.

Suitable for

• Creating precise counterbores and chamfers in steel and other metals
• Use in drilling machines and machine tools that accept DIN 335-C countersinks
• Workshop machining, repair tasks, and small-scale production runs

Key specifications

• Tool type: DIN 335-C countersink drill bit
• Material: high-speed steel with cobalt (HSSE)
• Nominal diameter: 20.5 mm
• Intended use: drilling and countersinking in metal
• Suitable mounting: holders and chucks compatible with DIN 335-C tooling

How to use

Select appropriate machine speed and cutting feed for the workpiece material and secure the countersink in a compatible holder or chuck. Align the tool with the pilot hole or marked center, start drilling at low speed to establish the cut, then increase speed and apply steady feed to produce the required counterbore or chamfer. Use cutting fluid where applicable to reduce heat and extend tool life, and clear chips regularly to prevent clogging and ensure consistent geometry.

Usage recommendations

For best results, match spindle speed and feed to the metal being worked: lower speeds for harder alloys and higher speeds for softer materials. Apply a suitable cutting fluid for steel to reduce friction and wear. Inspect the cutting edges regularly and replace the tool when wear or damage affects hole quality. Ensure the machine and holder provide minimal runout to maintain accuracy.