Guhring HSS aircraft extension drills are manufactured using high speed steel for greater strength and rigidity when machining, the 6 inch long shaft allows for deeper hole cutting in substrates such as aluminium alloys, laminated plates and cast iron. Manufactured to a bright finish they are extremely durable and feature wear and heat resistant properties.

Features and Benefits
• High speed steel for greater rigidity and strength when machining
• Extra long shaft for deeper hole cutting
• Wear and heat resistant properties extend tool lifespan

Specifications
• HSS
• Without internal cooling
• Standards: NAS 907
• Web thinning: ≥ Ø 1.500
• Relieved cone
• Cutting direction: Right
• Diameter tolerance: h8
• Point angle 118 degrees

Typical Applications
• Drilling
• Aluminium
• Steel
• Cast iron