RUKO HGB-DIN352-HSSCo-60°-M-4x0,70 mm sada ručných závitníkov, metrický závit ISO M4 x 0,70 mm, DIN 352, HSS-Co, 3-dielna

Machinists and metalworkers use this RUKO hand tap set for cutting metric ISO threads in through and blind holes. The set includes three taps: taper, plug, and bottoming, each made from high-speed steel with cobalt (HSS-Co) for durability and heat resistance. The taps have a 60° flank angle, right-hand cutting direction, and a square drive shank. Suitable for materials up to 900 N/mm² hardness.

Key specifications

• Thread type: Metric ISO Thread
• Thread size: M4
• Thread pitch: 0.70 mm
• Standard: DIN 352
• Material: High-Speed Steel with Cobalt (HSS-Co)
• Number of taps: 3 (taper, plug, bottoming)
• Flank angle: 60°
• Cutting direction: Right-hand
• Tolerance class: ISO 2 (6H)
• Shank type: Square drive
• Overall length per tap: 45 mm
• Thread length per tap: 13 mm
• Shank diameter per tap: 3.0 mm
• Square drive size per tap: 2.4 mm
• Recommended core hole diameter: 3.3 mm
• Surface finish: Bright
• Packaging: Plastic case

Why choose it

HSS-Co material provides better heat resistance and longer tool life compared to standard HSS, making this set suitable for demanding applications. The three-tap set allows for gradual thread cutting, reducing the risk of tap breakage and ensuring clean threads.

Ideal use cases

• Creating M4 threads in metal components
• Repairing damaged threads
• General-purpose threading in workshops and manufacturing

Good to know

The recommended core hole diameter for M4 x 0.70 mm is 3.3 mm. Use appropriate cutting fluid for best results. The set comes in a plastic case for storage and organization.