Drill bit FANAR WIERTLO NWKA Ø11.30 mm HSSE for stainless steel, DIN 338, 94/142 mm

FANAR WIERTLO NWKA Ø11.30 mm HSSE is a high-speed steel with cobalt (HSSE) twist drill produced to DIN 338 dimensions and intended for drilling stainless steels and other corrosion-resistant alloys. The drill has a cylindrical shank and cutting geometry suited to metalworking, supplied in a 94/142 mm overall length specification that balances reach and rigidity for workshop and industrial use. Designed to provide improved heat and wear resistance compared with conventional HSS drills, this FANAR drill bit is intended for applications where stainless materials require controlled cutting conditions and durability.

Advantages

The HSSE grade with added cobalt increases hot hardness and wear resistance, enabling longer tool life when drilling stainless steel at appropriate speeds and feeds. Conformity to DIN 338 ensures consistent geometry and dimensions for reliable clamping and interchangeability in drill chucks and tool holders. The combination of Ø11.30 mm diameter and the 94/142 mm length provides a practical compromise between drilling depth and stiffness, reducing chatter and improving hole quality when used with correct machine settings.

Suitable for

• Drilling through stainless steel (INOX) sheets and plates
• Metalworking in workshops and small-scale industrial production
• Punching pilot holes and through holes in corrosion-resistant alloys
• Use in hand-held drills with proper chucks and in drill presses or milling machines

When it may not be suitable

This HSSE twist drill is not intended for drilling masonry, concrete, wood, or plastics where specialized masonry or wood bits are required. For extremely deep-hole drilling beyond the effective flute length or where chip evacuation is difficult, a specialized long-series or coolant-fed tool may be required. Also, if the application requires carbide-level cutting speeds or abrasive materials, a carbide or coated carbide drill may be more appropriate.

Key specifications

• Material grade: High-speed steel with cobalt (HSSE)
• Diameter: 11.30 mm
• Standard: DIN 338 (twist drill geometry and dimensions)
• Overall length specification: 94/142 mm
• Shank type: cylindrical (suitable for chucks and tool holders)
• Intended workpiece: stainless steel and corrosion-resistant alloys

How to use

Secure the drill bit firmly in an appropriate chuck or tool holder and ensure the workpiece is clamped securely. Use cutting speeds and feed rates appropriate for HSSE drills in stainless steel—moderate cutting speeds with steady feed to avoid work hardening the material. Apply cutting fluid or coolant to reduce heat and improve chip evacuation; peck drilling or periodic retraction may be necessary for deeper holes to clear chips. Start at low speed for alignment, then increase to the recommended speed for the diameter and material, maintaining stable machine operation throughout the drilling process.

What to consider before purchase

• Confirm compatibility of the 11.30 mm diameter and 94/142 mm length with your machines and chucks.
• Ensure HSSE grade is suitable for the stainless steel grade you intend to machine.
• Check whether you require coated or carbide drills for higher speed or highly abrasive materials.
• Plan for appropriate coolant and chip evacuation when drilling deeper holes.

Usage recommendations

For best results when drilling stainless steel with the FANAR WIERTLO NWKA Ø11.30 mm HSSE, use moderate speeds, steady feed, and adequate coolant. Where possible, use a drill press or milling machine for improved alignment and rigidity; employ peck drilling for deeper holes to maintain chip flow and prevent overheating.