RUKO KEB-HSSCo-28.0mm-QuickIn Core Drill Bit

Drilling large-diameter holes in tough metals like steel and stainless steel often leads to wandering, overheating, and rapid tool wear with standard twist drills. The RUKO KEB-HSSCo-28.0mm-QuickIn core drill bit solves this by cutting only the perimeter of the hole, leaving a solid core. This reduces cutting forces, improves accuracy, and extends tool life.

Who is it for

Professional metalworkers, fabricators, and industrial maintenance teams who need fast, precise, large-diameter holes in sheet metal, profiles, or plates up to 30 mm thick.

Main features

• 28.0 mm drilling diameter with high concentricity for accurate holes.
• Made from HSS-Co (cobalt high-speed steel) for high wear resistance and heat tolerance.
• QuickIn shank system for quick tool changes in compatible chucks and adapters.
• Multi-tooth geometry with internal chip evacuation for efficient drilling.
• Maximum cutting depth of 30 mm.
• Suitable for steel, stainless steel, cast iron, and non-ferrous metals.

Specifications

• Drilling diameter: 28.0 mm
• Material: HSS-Co
• Shank system: QuickIn
• Tool type: Core drill bit / annular cutter
• Maximum cutting depth: 30 mm
• Application: Steel, stainless steel, cast iron, non-ferrous metals
• Series: KEIL QuickIn

Tips

Use coolant or cutting fluid to maximize tool life and hole quality. Ensure the QuickIn adapter is securely tightened before starting. For thicker materials beyond 30 mm, consider a longer cutter or drill from both sides.