Dormer A777 HSCo Heavy-Duty Jobber Drill 6.00 mm Pack of 10

The Dormer A777 HSCo Heavy-Duty Jobber Drill is designed for high-performance drilling in tougher materials, with a focus on high tensile applications and heat generation. It features a 135° split point to aid self-centering, ease penetration, and reduced thrust, making it suitable for demanding tasks in industries such as aerospace. Constructed from HSCo cobalt steel with a bronze surface treatment for identification and protection, this drill combines strength with reliable cutting efficiency. The geometry includes a standard helix, right-hand spiral, and a thick web for added rigidity, while offering precise point configurations across sizes to match varying material hardness. Overall, the design prioritizes durability and dependable performance under heavy-duty drilling conditions. Specifications include a tip diameter of 6.0 mm, a working length of 57 mm, and an overall length of 93 mm, with standards aligned to DIN 338 RN / BS328 / ISO 235.

Features

• Tip diameter: 6.0 mm
• Working length: 57 mm
• Overall length: 93 mm
• 135° split point for high heat & tougher materials
• Bronze surface treatment on HSCo cobalt steel
• Standard helix, right-hand spiral, thick web

Technical specifications

• Flute geometry: Standard Helix; Right hand spiral; Thick Web
• Point angles by size: 0.30–0.95 mm (118° conical)
• 1.00–1.40 mm: 135°; 1.50 mm and above: 135° split point
• 4-facet point for sizes ≥1.50 mm (NAS 907)
• Standard: DIN 338 RN / BS328 / ISO 235
• Tip diameter: 6.0 mm