BDS HSS kierrekaira 18 mm leikkaussyvyys 30 mm Weldon-varsi KBK-018

For fabricators and maintenance crews working with steel plate, pipe, or structural sections, the BDS KBK-018 annular cutter delivers clean, accurate 18 mm holes with minimal effort. The high-speed steel body and precision-ground cutting edges slice through metal quickly, leaving a burr-free finish that reduces secondary work. The Weldon shank locks securely into magnetic drills and compatible arbors, ensuring stable, chatter-free operation even under heavy feed pressure.

Key specifications

• Drill bit type: Core drill bit (annular cutter)
• Cutting diameter: 18 mm
• Cutting depth: 30 mm
• Shank type: Weldon (19 mm / 3/4 inch)
• Overall length: 64 mm
• Material: High-speed steel (HSS)
• Number of cutters: 2
• Manufacturing process: Ground
• Series: BDS KBK Standard

Why choose it

Unlike twist drills, this core drill removes only the periphery of the hole, leaving a solid slug that ejects easily. That means faster drilling, less power consumption, and longer tool life. The robust HSS construction withstands high temperatures, while the ground flutes ensure efficient chip evacuation. The Weldon shank provides a positive, non-slip connection, eliminating the need for a chuck and reducing run-out for precise hole positioning.

Ideal use cases

• Drilling through steel plates, beams, and channels in fabrication shops
• Creating holes for bolts, pipes, and cable entries in construction and industrial maintenance
• Working with cast iron and non-ferrous metals such as aluminum and brass
• Use with magnetic drilling machines, drill presses, or stationary equipment with a Weldon adapter

Good to know

For best results, use a suitable cutting fluid or coolant to extend tool life and improve surface finish. A pilot pin (ejection pin) is required to eject the slug after drilling; ensure it is properly seated before starting. The cutter is designed for professional use and should be operated at recommended speeds and feeds for the material being drilled.