RUKO STB-HSS-Gr.2-1/8-1/2 UNF Hand Tap Set, 5 Pieces, HSS-G, DIN 352, ISO 2 (6H), Straight Flute, Square Shank, Bright Finish, in Plastic Case

This 5-piece hand tap set provides reliable threading in unalloyed and low-alloyed steels, non-ferrous metals, and plastics. The taps are made from high-speed steel ground (HSS-G) for precise cutting edges and long tool life. They are suitable for both through and blind holes, with a right-hand cutting direction and straight flutes for efficient chip evacuation.

Advantages

Ground flutes and threads ensure accurate thread profiles and smooth operation. The set covers common UNF fine thread sizes from 1/4 inch to 1/2 inch, making it versatile for maintenance and manufacturing tasks. The bright finish reduces friction and protects against corrosion.

Suitable for

• Manual threading in unalloyed and low-alloyed steels
• Non-ferrous metals such as aluminium and brass
• Plastics
• Through and blind holes

Key specifications

• Thread type: UNF (Unified National Fine)
• Number of pieces: 5
• Tap sizes: 1/4" UNF, 5/16" UNF, 3/8" UNF, 7/16" UNF, 1/2" UNF
• Material: High-Speed Steel Ground (HSS-G)
• Standard: DIN 352
• Tolerance: ISO 2 (6H)
• Shank type: Square shank
• Flute type: Straight flute
• Cutting direction: Right-hand cut
• Surface treatment: Bright (uncoated)
• Packaging: Robust plastic case

Recommendations

Use with a suitable tap wrench and cutting fluid for best results. For blind holes, ensure adequate chip clearance and reverse periodically to break chips.