RUKO HGB-II DIN 352 HSS 60° Hand Tap M10 x 1.50 mm Left-Hand

Cutting precise left-hand internal threads by hand in unalloyed and low-alloyed steels, non-ferrous metals, and plastics requires a tool that combines accurate geometry with durable high-speed steel. The RUKO HGB-II hand tap delivers exactly that, following the DIN 352 standard for metric threads with a 60° thread angle and ISO 2 (6H) tolerance class.

Who is it for

Machinists, metalworkers, and maintenance technicians who need to produce reliable left-hand threads in through holes or blind holes using manual tapping operations. Its M10 x 1.50 mm size is common in mechanical assemblies where left-hand rotation is required to prevent loosening.

Main features

• Left-hand thread direction (LH) for applications requiring reverse rotation.
• Made from high-speed steel (HSS) for durability and wear resistance.
• Bright uncoated surface for general-purpose use.
• 3 flutes for efficient chip evacuation.
• Square drive size 6.3 mm for secure holding in tap wrenches.

Specifications

• Tool Type: Hand Tap
• Thread Type: Metric (M)
• Thread Size: M10
• Thread Pitch: 1.50 mm
• Thread Direction: Left-Hand (LH)
• Standard: DIN 352
• Material: High-Speed Steel (HSS)
• Thread Angle: 60°
• Tolerance Class: ISO 2 (6H)
• Overall Length: 70 mm
• Thread Length: 22 mm
• Shank Diameter: 8.0 mm
• Square Drive Size: 6.3 mm
• Number of Flutes: 3
• Surface Treatment: Bright (Uncoated)

Tips

Use a suitable cutting fluid when tapping metals to extend tool life and improve thread finish. Ensure the tap is aligned perpendicular to the workpiece and reverse periodically to break chips.