RUKO HGB Set 2-Piece DIN 2181 Metric Fine Hand Tap Set M18 x 1.0 mm HSS-G

Cutting precise M18 x 1.0 mm metric fine threads by hand in steel, cast iron, or non-ferrous metals requires a tap set that matches the DIN 2181 standard and holds a sharp edge. This two-piece hand tap set from RUKO provides the taper and second taps needed for through and blind holes, made from high-speed steel ground (HSS-G) for reliable performance.

Who is it for

Machinists, metalworkers, and maintenance technicians who need to create or repair M18 fine threads in unalloyed and alloyed steels up to 800 N/mm², cast iron, and non-ferrous metals. The set is suitable for both through holes and blind holes when used with proper technique.

Main features

• Two-piece set: taper tap for starting threads and second tap for finishing to full depth.
• Metric fine thread M18 x 1.0 mm, right-hand, tolerance ISO 2 (6H).
• Ground high-speed steel (HSS-G) for durability and clean cutting edges.
• Straight flutes for efficient chip evacuation in manual threading.
• Bright uncoated finish.

Specifications

• Thread standard: DIN 2181
• Thread type: Metric fine (MF)
• Nominal thread diameter: 18 mm
• Thread pitch: 1.0 mm
• Overall length: 100 mm
• Thread length: 35 mm
• Shank diameter: 14.0 mm
• Square size: 11.0 mm
• Recommended core hole diameter: 17.0 mm
• Material: High-speed steel ground (HSS-G)
• Cutting edge geometry: Straight flutes
• Surface finish: Bright (uncoated)
• Thread direction: Right-hand
• Thread tolerance: ISO 2 (6H)
• Suitable materials: Unalloyed and alloyed steels up to 800 N/mm², cast iron, non-ferrous metals
• Application: General purpose threading in through and blind holes

Tips

Use a suitable cutting oil when tapping steel to extend tool life and improve thread finish. For blind holes, clear chips frequently to prevent binding. The recommended core hole diameter is 17.0 mm; drill accurately to ensure proper thread engagement.