The Bordo 28.0mm HSS Countersink Triple Flute 90° Bright Hex Shank is part of Bordo’s professional countersinking range, engineered for precision chamfering, deburring and countersinking in workshop and trade environments. Designed for use in impact drivers and standard drill chucks, this countersink delivers smooth, consistent results across general-purpose finishing applications.
Manufactured from premium High Speed Steel and finished with a bright ground surface, this triple flute countersink provides excellent cutting balance, reduced chatter and improved surface finish. The 90° cutting angle ensures accurate screw seating, while the 1/4″ hex shank offers secure grip and fast bit changes. The 28.0 mm diameter is ideal for chamfering and deburring holes in steel, sheet metal, aluminium and plastics.
Bordo has built a strong reputation in Australia for supplying dependable industrial cutting tools backed by quality manufacturing standards. Industrial Shed ensures you have fast access to trusted trade-grade countersinks when you need them on site or in the workshop.
Product Type: Countersink – Triple Flute 90°
Brand: Bordo
Diameter: 28.0 mm
Material: High Speed Steel (HSS)
Finish: Bright
Shank: 1/4″ Hex
Part Number: 3846-28
Application: Countersinking, chamfering & deburring in steel, aluminium & plastics
► Key Features
‣ 28.0 mm triple flute design for smooth cutting
‣ 90° cutting angle for accurate screw seating
‣ High Speed Steel construction for durability
‣ 1/4″ hex shank for impact compatibility
‣ Reduced chatter and clean surface finish
► Why Tradies and Contractors Buy This
‣ Clean, professional hole finishing
‣ Fast bit changes on site
‣ Ideal for fabrication and maintenance tasks
‣ Trusted Australian industrial brand
‣ Backed by Industrial Shed’s fast dispatch and trade support
► Stock won’t last — get yours now at Industrial Shed!
At Industrial Shed, we know you need your gear fast and without the runaround. Here’s what makes our shipping better:
Local Delivery, Done In-House: If you're on the Mornington Peninsula, we handle delivery ourselves—no middlemen, no delays. Get your tools the same day or next day, straight from our team to your door.
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For more information, visit Shipping Details: The Essentials.
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What Sets Us Apart?
Fast Turnaround: We don’t mess around. When you need to return an item, we process it quickly so you’re not left waiting. Our goal is to get your refund or exchange sorted fast so you can get back to work.
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No-Nonsense Support: We make returns and refunds straightforward. If there’s a problem, you won’t be stuck in endless back-and-forths. We’re hands-on and get it sorted with minimal hassle.
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Built for Tradies: We understand the demands of the job, so we’re all about making returns and refunds simple, quick, and no fuss—because downtime is the last thing you need.
For more information, visit Returns & Refunds: Straight Talk.
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