RUKO HGB Hand Tap Set DIN 2181 M42 x 1.5 mm, 2-Piece, Metric Fine Thread, HSS-G

Machinists and maintenance technicians use this RUKO hand tap set for cutting metric fine threads with a 42 mm nominal diameter and 1.5 mm pitch in unalloyed and low-alloyed steels up to 800 N/mm² tensile strength. The set includes a taper tap for starting and a plug tap for finishing, both made from ground high-speed steel (HSS-G) for clean, accurate threads.

Key specifications

• Thread standard: DIN 2181, metric fine thread (MF)
• Nominal diameter: 42 mm, pitch: 1.5 mm
• Set configuration: 2-piece (taper tap and plug tap)
• Material: Ground high-speed steel (HSS-G)
• Total length: 220 mm, thread length: 60 mm
• Shank diameter: 32 mm, square drive: 25 mm
• Cutting direction: right-hand, tolerance: ISO 2 (6H)
• Number of flutes: 4, surface: bright (uncoated)

Why choose it

The ground flutes and HSS-G material deliver reliable performance and a long tool life. The two-tap set covers both starting and bottoming operations, making it suitable for through holes and blind holes where a full thread profile is needed.

Ideal use cases

• Creating metric fine threads in steel workpieces on manual machines or by hand
• Repairing damaged threads in maintenance and toolmaking workshops
• General-purpose threading in unalloyed and low-alloyed steels

Good to know

The bright finish reduces friction during cutting. The set is supplied without a case; individual taps are also available separately.