RUKO HGB-DIN352-HSS-60°-1 Metric Coarse Finishing Tap M1 x 0.25 mm

For machinists and metalworkers who need precise internal threads in small components, the RUKO HGB-DIN352-HSS-60°-1 finishing tap delivers reliable manual threading in metric coarse sizes. This second tap is designed to produce final threads to ISO 2 (6H) tolerance, ensuring a proper fit for M1 fasteners.

Key specifications

• Thread standard: Metric Coarse
• Nominal thread diameter: M1
• Thread pitch: 0.25 mm
• Tool standard: DIN 352
• Material: High-Speed Steel (HSS)
• Tap type: Finishing Tap (Second Tap)
• Cutting direction: Right-hand
• Thread angle: 60°
• Tolerance class: ISO 2 (6H)
• Shank type: Square Drive
• Number of flutes: 3
• Surface treatment: Bright Finish
• Application: Manual Threading
• Recommended material: General purpose steels, non-ferrous metals, plastics

Why choose it

The HSS construction offers good wear resistance for threading common materials, and the bright finish reduces friction. The square drive shank fits standard tap wrenches, making it straightforward to use by hand.

Ideal use cases

• Creating M1 internal threads in small metal or plastic parts
• Repairing damaged threads in precision assemblies
• Prototyping and small-batch production where manual tapping is preferred

Good to know

As a finishing tap, it is intended for the final pass after a taper or plug tap has started the thread. Use appropriate cutting fluid for best results and tool life.