FANAR závitník M 4 NGMM DIN-352 INOX strojný závitník, HSS-E, M4 x 0,7 mm, forma C, pravý

For cutting clean, accurate M4 threads in stainless steel and other tough alloys, this FANAR machine tap stands apart through its HSS-E cobalt substrate and DIN 352 geometry. The three-flute design with Form C chamfer balances chip evacuation and cutting stability, making it a dependable choice for both through holes and blind holes with adequate chip space. The bright, uncoated finish reduces friction on ductile materials, while the ISO 2 (6H) tolerance class ensures the tapped hole meets standard fit requirements.

Highlights

• Metric ISO thread M4 × 0.7 mm, right-hand cutting
• HSS-E (cobalt high speed steel) for high wear resistance and heat hardness
• DIN 352 machine tap, Form C (2–3 thread chamfer)
• 3 flutes for efficient chip removal in stainless steel
• Bright surface treatment — ideal for INOX and non-ferrous metals
• Tolerance class ISO 2 (6H) for standard thread fits

In daily use

When threading stainless steel components, the tap’s cobalt-enriched HSS-E body retains hardness even at elevated cutting temperatures, reducing premature edge breakdown. The 45 mm overall length and 4.5 mm shank diameter fit standard tap holders and collets, while the 3.4 mm square drive provides positive torque transfer. The Form C chamfer eases starting and centers the tap, lowering the risk of cross-threading in manual or machine operations. Use a suitable cutting fluid to extend tool life and achieve a smooth surface finish.

Full specifications

• Thread standard: Metric ISO (DIN 352)
• Nominal diameter: M4
• Thread pitch: 0.7 mm
• Tap type: Machine tap
• Material: HSS-E (cobalt high speed steel)
• Surface treatment: Bright (uncoated)
• Tolerance class: ISO 2 (6H)
• Overall length: 45 mm
• Thread length: 12 mm
• Shank diameter: 4.5 mm
• Square drive size: 3.4 mm
• Number of flutes: 3
• Chamfer form: Form C (2–3 threads)
• Cutting direction: Right hand
• Application material: Stainless steel (INOX)
• Thread profile angle: 60°

Final note

This FANAR tap is a robust choice for professionals who demand consistent thread quality in challenging materials, backed by precise DIN 352 geometry and cobalt-enriched steel for extended tool life.