Somta Series 541 – HSS Straight Flute Short Hand Taper (First Tap) UNC 7/8" x 9 TPI

The Somta Series 541 is a precision-ground HSS Unified National Coarse (UNC) taper tap designed for accurate and reliable thread production in both through and blind holes. Suitable for general hand tapping, this tap delivers a smooth finish and consistent thread profile across a wide range of materials.

Key Features & Benefits

• Thread Size: UNC 7/8" x 9 TPI
• Material: High-Speed Steel (HSS) for superior strength and wear resistance
• Flute Type: Straight flute for effective chip removal
• Thread Form: 60° flank angle per ASME B1.1
• Cutting Direction: Right-hand cutting
• Application: General-purpose tapping across various materials

Technical Specifications

• Series: 541
• Thread Size: UNC 7/8" x 9 TPI
• Standard: ASME B1.1
• Type: Taper (First Tap)
• Flute Type: Straight
• Material: HSS (High-Speed Steel)
• Cut Direction: Right Hand
• Country of Origin: South Africa

Somta is a South African manufacturer of precision cutting tools, recognised globally for consistent quality and performance. Their HSS tap range is a trusted choice for professional machinists and workshop engineers across industrial and general engineering applications.