RUKO MGB-DIN371-HSSCo-vap.-M2,5x0,45mm Machine Tap

Threading small-diameter through holes in tough materials demands a tap that resists heat and wear. The RUKO MGB-DIN371-HSSCo-vap. M2.5x0.45 machine tap is built from high-speed steel with cobalt (HSS-Co) and steam tempered for a hard, lubricant-retaining surface. It cuts metric coarse threads to ISO 2 (6H) tolerance in unalloyed and alloyed steels up to 800 N/mm², stainless steels, cast iron, and non-ferrous metals.

Who is it for

Machinists and maintenance technicians who need reliable thread production in small diameters, especially in stainless or high-strength steel. The spiral point design pushes chips forward, making it ideal for through holes.

Main features

• HSS-Co with vaporized (steam tempered) surface for improved wear resistance and chip evacuation
• Spiral point flute geometry for through-hole threading
• DIN 371 Form B with reinforced shank and square drive
• Right-hand cut for standard clockwise threading
• Precision ground to ISO 2 (6H) tolerance class

Specifications

• Thread type: Metric coarse (M)
• Nominal diameter: M2.5
• Pitch: 0.45 mm
• Overall length: 45 mm
• Thread length: 10 mm
• Shank diameter: 2.8 mm
• Square drive: 2.1 mm
• Cutting direction: Right-hand
• Standard: DIN 371 (Form B)

Tips

Use a suitable cutting fluid for stainless steels to extend tool life. Ensure the hole is properly sized for M2.5 tapping (2.05 mm drill).