Description
KARNASCH 20.1528 Hole Saw Arbor – 1-1/4" – 12"
Engineered for professional performance, the KARNASCH 20.1528 Hole Saw Arbor is a heavy-duty solution for drilling large-diameter holes with bi-metal hole saws. The arbor includes a high-speed steel (HSS) center drill and an ejector spring for fast, efficient hole cutting and easy removal of cut material.
Its 7/16" (11.0 mm) hex shank ensures secure, slip-free fitting in standard drill chucks, while supporting hole saw diameters from 32 mm up to 305 mm. This arbor is ideal for metal, wood, and composite materials in industrial and workshop applications.
Key Features
- Heavy-duty hole saw arbor for bi-metal hole saws
- Suitable for diameters 32 mm – 305 mm
- Includes HSS center drill for precise starts
- Ejector spring for fast removal of cut material
- Hex shank 7/16" (11.0 mm) for secure, slip-free attachment
- Durable design for long-lasting professional use
Ideal For
- Industrial and workshop drilling
- Metal, wood, and composite cutting
- Large-diameter hole drilling
- Professionals requiring precision and durability
Specifications
- Model: 20.1528
- Diameter range: 32 mm – 305 mm (1-1/4" – 12")
- Shank: Hex, 7/16" (11.0 mm)
- Includes: HSS center drill + ejector spring
- Material: Heavy-duty steel










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