RUKO HGB Set DIN352 HSS 60° M8 x 1,25 mm set maschi a mano sinistrorsi

This RUKO hand tap set is built for cutting left-hand M8 x 1.25 mm internal threads, a configuration that is not part of every general-purpose tap assortment. The three-piece set follows the DIN 352 standard, with taper, plug, and bottoming taps to handle both through holes and blind holes. High-speed steel keeps the cutting edges stable in unalloyed and low-alloyed steels up to 800 N/mm², as well as malleable cast iron, non-ferrous metals, and plastics.

Highlights

• Left-hand thread direction for reverse-thread applications
• M8 x 1.25 mm metric fine pitch
• 60° thread flank angle
• Three taps: taper, plug, and bottoming
• Bright HSS finish, no coating
• Square drive shank

In daily use

The set covers the full threading sequence. Start with the taper tap to establish the thread, follow with the plug tap for depth, and finish with the bottoming tap for threads close to the bottom of a blind hole. The ISO 2 (6H) tolerance class gives a standard fit for general engineering work.

Full specifications

• Product type: Hand tap set
• Material: High-speed steel (HSS)
• Standard: DIN 352
• Thread type: Metric (M)
• Thread size: M8
• Thread pitch: 1.25 mm
• Thread direction: Left-hand
• Number of pieces: 3
• Thread flank angle: 60°
• Tolerance class: ISO 2 (6H)
• Shank type: Square drive
• Surface treatment: Bright (uncoated)
• Recommended for: Unalloyed and low-alloyed steels up to 800 N/mm², malleable cast iron, non-ferrous metals, plastics

Final note

The set is supplied in a plastic case for organised storage and quick identification of each tap.