BDS HSS VarioPLUS 12 mm Core Drill Bit with Weldon Shank, 30 mm Cutting Depth KBK-VP012

Precision-ground HSS-VarioPLUS core drill bit with 12 mm cutting diameter and 30 mm cutting depth, engineered for clean, efficient annular drilling in steel, stainless steel, cast iron, and non-ferrous metals. The Weldon shank (19 mm / 3/4 inch) ensures secure mounting in magnetic drilling machines and core drilling machines, while the two cutting edges deliver fast, burr-free holes with minimal effort.

Overview

The BDS KBK-VP012 is part of the HSS-VarioPLUS series, designed for professional metalworking applications where accuracy and tool life are critical. Its hollow core design removes only the periphery of the hole, reducing cutting forces and power consumption compared to solid twist drills. The bit is manufactured from high-speed steel with VarioPLUS treatment, offering enhanced hardness and heat resistance for extended service life. Suitable for both internal and external cooling systems, it maintains optimal cutting temperatures even in continuous use.

What stands out

• Weldon shank (19 mm) for quick, tool-free bit changes on magnetic drills
• Precision-ground cutting edges for smooth, chatter-free operation
• Versatile across steel, stainless steel, cast iron, and non-ferrous metals
• Compatible with internal and external coolant supply
• Compact overall length of approximately 65 mm for tight workspaces

Technical details

• Drill bit type: Core drill bit (annular cutter)
• Material: HSS-VarioPLUS (high-speed steel)
• Cutting diameter: 12 mm
• Cutting depth: 30 mm
• Shank type: Weldon
• Shank diameter: 19 mm (3/4 inch)
• Number of cutting edges: 2
• Overall length: approx. 65 mm
• Cooling: Internal and external compatible
• Ejector pin required: Yes (standard for core drills)
• Packaging unit: 1 piece

Our verdict

An indispensable tool for metal fabricators and maintenance crews who demand clean, accurate holes without the weight and power draw of solid drills. The HSS-VarioPLUS coating and robust Weldon interface make it a reliable choice for high-volume drilling on magnetic machines.