Cimco 203051 strojný závitník M4 s rovnou drážkou HSS-E DIN 371

Machine tap with straight flutes for cutting metric M4 threads in through holes. The HSS-E cobalt alloy provides high wear resistance and heat hardness, enabling reliable thread production in unalloyed and alloyed steels, cast iron, and non-ferrous metals up to 800 N/mm² tensile strength.

Advantages

Straight flute geometry directs chips forward, preventing clogging in through-hole applications. The ISO 2 (6H) tolerance class ensures threads fit standard metric fasteners. Precision-ground threads and a 3.4 mm square drive allow secure holding in tap wrenches or machine holders.

Suitable for

• Unalloyed and alloyed steels
• Cast iron
• Non-ferrous metals
• Through holes

Key specifications

• Thread size: M4 × 0.7 mm
• Standard: DIN 371
• Material: HSS-E (cobalt high-speed steel)
• Flute type: straight
• Number of flutes: 3
• Total length: 63 mm
• Shank diameter: 4.5 mm
• Square drive: 3.4 mm
• Cutting direction: right-hand
• Recommended core hole diameter: 3.3 mm

Recommendations

Use a suitable cutting fluid for best tool life. For blind holes, consider a spiral flute tap instead.