RUKO HGB Set DIN 352 HSS 60° No. 8x Hand Tap Set, M8 x 1.25 mm, 3 Pieces

Cutting internal threads by hand in steel, cast iron, and non-ferrous metals can be slow and imprecise with single taps. This RUKO hand tap set solves that by providing the three essential taps—taper, second, and bottoming—in one convenient package, enabling you to produce accurate M8 coarse threads in through and blind holes with standard 60° flank angle.

Who is it for

Machinists, metalworkers, and maintenance technicians who need a reliable set for manual thread cutting in unalloyed and alloyed steels up to 800 N/mm², cast iron, and non-ferrous metals. Ideal for workshop use, repair jobs, and small-batch production.

Main features

• Complete set of three hand taps: taper tap for starting, second tap for intermediate cutting, and bottoming tap for threading close to the bottom of blind holes.
• Manufactured from high-speed steel (HSS) for durability and long tool life.
• Conforms to DIN 352 for metric coarse threads with a 60° flank angle.
• Right-hand cutting direction for standard threading operations.
• Bright uncoated finish reduces friction and allows easy chip evacuation.
• Square shank design for secure grip in tap wrenches.

Specifications

• Material: High-Speed Steel (HSS)
• Standard: DIN 352
• Thread Type: Metric Coarse Thread (M)
• Thread Size: M8
• Thread Pitch: 1.25 mm
• Number of Pieces in Set: 3
• Tap Types Included: Taper Tap, Second Tap, Bottoming Tap
• Flank Angle: 60°
• Cutting Direction: Right-hand cut
• Application: For general purpose threading in through and blind holes
• Recommended Material: Unalloyed and alloyed steels up to 800 N/mm², cast iron, non-ferrous metals
• Surface Finish: Bright (uncoated)
• Tool Type: Hand Tap Set
• Shank Type: Square Shank
• Recommended Core Hole Diameter: 6.8 mm
• Tolerance: ISO 2 (6H)

Tips

For best results, drill a core hole of 6.8 mm diameter before tapping. Use a suitable cutting fluid to extend tap life and improve thread quality. Start with the taper tap, then use the second tap, and finish with the bottoming tap if threading a blind hole.