RUKO HGB-DIN352-HSS-60°-M8x1.25mm Hand Tap

Machinists and metalworkers use this RUKO hand tap for cutting metric M8 coarse threads with a 1.25 mm pitch in through and blind holes. It is made from high-speed steel (HSS) and conforms to DIN 352, making it suitable for steels up to 800 N/mm², cast iron, and non-ferrous metals.

Key specifications

• Thread size: M8 x 1.25 mm
• Thread type: Metric coarse thread
• Thread angle: 60°
• Standard: DIN 352
• Material: High-speed steel (HSS)
• Overall length: 70 mm
• Thread length: 22 mm
• Shank diameter: 6.0 mm
• Square drive size: 4.9 mm
• Number of flutes: 3
• Cutting direction: Right-hand
• Tolerance class: ISO 2 (6H)
• Surface treatment: Bright finish

Why choose it

This tap is designed for general-purpose threading in a wide range of materials. Its HSS construction provides durability and wear resistance, while the bright finish reduces friction during cutting. The three-flute design offers good chip evacuation and stability.

Ideal use cases

• Creating internal M8 threads in steel components
• Repairing damaged threads in cast iron parts
• Threading non-ferrous metals such as aluminium and brass

Good to know

The tap has a right-hand cutting direction, which is standard for most applications. It is a single tap, suitable for both through and blind holes when used with appropriate technique.