RUKO HGB Set 2-Piece DIN 2181 Hand Tap Set M18 x 1.25 mm Metric Fine

Machinists and maintenance technicians working on steel, cast iron, or non-ferrous metal components will appreciate this RUKO HGB hand tap set for cutting M18 x 1.25 mm metric fine threads. The set contains a taper tap for starting threads and a bottoming tap for threading close to the bottom of blind holes, both made from high-speed steel (HSS-G) with a bright finish.

Key specifications

• Thread size: M18 x 1.25 mm (metric fine)
• Standard: DIN 2181
• Material: HSS-G (high-speed steel, ground)
• Set composition: 2 pieces – taper tap and bottoming tap
• Overall length: 110 mm
• Thread length: 30 mm
• Shank diameter: 14.0 mm
• Square size: 11.0 mm
• Number of flutes: 4
• Cutting direction: right-hand
• Tolerance class: ISO 2 (6H)
• Recommended core hole diameter: 16.75 mm

Why choose it

Ground from HSS-G, these taps deliver clean, accurate threads in unalloyed and alloyed steels up to 800 N/mm², cast iron, and non-ferrous metals. The set covers both through holes and blind holes, making it a versatile addition to any workshop.

Ideal use cases

• Creating M18 fine threads in steel plates or castings
• Thread repair and restoration
• General maintenance and prototyping

Good to know

The bright finish provides a clean surface and good chip evacuation. For best results, use a suitable cutting fluid and the recommended core hole diameter of 16.75 mm.