Dormer A777 HSCo Heavy-Duty Jobber Drill 9.00mm OL:125mm WL:81mm | A7779.0

Dormer A7779.0 HSCo heavy-duty jobber drill bit, 9.0mm (125mm overall length)

Dormer A7779.0 jobber drill bit is a heavy-duty metal drill bit designed for accurate, consistent drilling when you need dependable performance in demanding materials. With a 9.0mm tip diameter and jobber length format, it’s a practical choice for workshop, site and maintenance drilling where controlled penetration and clean hole quality matter.

This Dormer A777 HSCo drill is manufactured from cobalt high-speed steel (HSCo), helping the bit maintain performance at higher drilling temperatures and supporting longer service life in tougher steels compared with standard HSS options.

Key Features

• HSCo cobalt steel construction: Designed to handle higher heat and resist wear in tougher metal drilling tasks.
• Heavy-duty jobber length pattern: A versatile all-round profile for general-purpose drilling in metal across a wide range of workshop and site jobs.
• 135° split point: Helps with self-centring starts and reduced wandering, supporting more accurate hole positioning.
• Bronze finish: Helps reduce friction and promotes smoother chip flow during drilling.
• Right-hand spiral flutes: Supports efficient swarf evacuation for steadier cutting action.

Specifications at a glance