RUKO HGB DIN 352 HSS 60° M4,5 x 0,70 mm dokončovací závitník

For machinists and metalworkers who need clean, precise internal threads in small-diameter holes, the RUKO HGB-DIN352-HSS-60°-M4,5x0,70mm hand tap delivers reliable performance. This finishing tap is designed for hand tapping operations, where a high-quality thread finish is essential.

Key specifications

• Thread type: Metric Coarse
• Nominal thread diameter: 4.5 mm
• Thread pitch: 0.70 mm
• Material: High-Speed Steel (HSS)
• Standard: DIN 352
• Thread angle: 60°
• Tap type: Finishing Tap
• Overall length: 50 mm
• Thread length: 13 mm
• Shank diameter: 3.55 mm
• Square drive size: 2.8 mm
• Number of flutes: 3
• Surface treatment: Bright (Uncoated)
• Tolerance class: ISO 2 (6H)
• Cutting direction: Right-hand
• Point type: Form C (2-3 threads lead)

Why choose it

Made from high-speed steel, this tap offers a good balance of hardness and toughness for general-purpose threading. The DIN 352 standard ensures compatibility with common tap wrenches and holders. Its bright finish reduces friction during cutting, helping to produce smooth threads in steels and non-ferrous metals.

Ideal use cases

• Hand tapping of through holes and blind holes in maintenance and repair work
• Creating threads in general-purpose steels and non-ferrous metals
• Finishing operations where thread accuracy and surface finish are critical

Good to know

As a finishing tap, it is intended for the final cut after a taper or plug tap has roughed out the thread. Use appropriate cutting fluid to extend tool life and improve thread quality. The right-hand cutting direction suits standard clockwise tapping.