RUKO HGB-DIN352-HSSCo-60°-M-8x1.25mm Hand Tap Set

Thread M8 x 1.25 mm with a 60° thread angle in high-speed steel with cobalt (HSS-Co) for demanding threading jobs. This 3-piece hand tap set follows DIN 352 and includes rougher, second, and finisher taps for complete thread cutting in one pass.

Overview

The RUKO HGB hand tap set is engineered for manual threading of metric coarse threads. Each tap is made from HSS-Co, providing enhanced heat resistance and wear resistance compared to standard HSS, making it suitable for a variety of materials. The set conforms to DIN 352, ensuring consistent geometry and interchangeability.

What stands out

• Complete set: 3 taps (rougher, second, finisher) for progressive thread cutting.
• Metric coarse M8 with 1.25 mm pitch, one of the most common thread sizes.
• 60° thread angle per ISO metric standard.
• Straight flutes for efficient chip evacuation in through holes.
• Right-hand cutting direction for standard tightening threads.

Technical details

• Thread size: M8 x 1.25 mm
• Standard: DIN 352
• Material: HSS-Co (high-speed steel with cobalt)
• Number of pieces: 3
• Total length: 70 mm
• Thread length: 22 mm
• Shank diameter: 6 mm
• Square drive: 4.9 mm
• Recommended core hole diameter: 6.8 mm
• Tolerance class: ISO 2 (6H)
• Surface treatment: Bright

Our verdict

A professional-grade hand tap set for reliable M8 threading in workshops and manufacturing. The cobalt alloy extends tool life, and the three-tap system produces accurate threads with less effort.