With a strong high speed steel construction for improved rigidity when machining and a black oxide finish for improved wear and heat resistance, the 'Blue Ring' range of gun nose taps from Swiss + Tech are ideal for tough application and through holes.

Features and Benefits
• High speed steel construction for improved rigidity when machining
• Black oxide coating for reduced heat and improved wear resistance
• Gun nose spiral for through hole cutting

Specifications
• For through holes
• Taper lead to DIN form B (3.5 x P to 5.5 x P)
• Tapping tolerance to 6H
• DIN 371/376

Typical Applications
• Tapping
• Through holes
• Steel
• Stainless steel
• Cast iron