The Steel Cutting Disc SF 400 x 3.2 x 25.4mm is a heavy-duty abrasive cutting disc designed for cutting compatible steel and ferrous metal materials. Featuring a large 400mm diameter, 3.2mm thickness, and 25.4mm bore, this disc is suitable for compatible cutting machines used in fabrication, construction, workshops, and general metalworking applications.
Its large diameter makes it particularly useful for demanding cutting jobs where greater cutting depth is required. Always ensure the cutting machine is compatible with the disc’s dimensions and rated operating speed before use.
400mm Steel Cutting Disc
This cutting disc has the following dimensions:
- Diameter: 400mm
- Thickness: 3.2mm
- Bore: 25.4mm
- Application: Steel cutting
The 3.2mm disc thickness provides a practical cutting profile for suitable steel applications, while the 25.4mm centre bore is designed for compatible cutting equipment.
Designed for Steel Cutting
The Steel Cutting Disc SF is intended for cutting compatible ferrous metal materials using an appropriate cutting machine.
Typical applications may include:
- Steel sections
- Steel tubing
- Steel pipe
- Flat bar
- Angle iron
- Steel profiles
- Metal fabrication
- Construction steel
- Workshop repairs
- General metal cutting
Always confirm material compatibility with the disc manufacturer’s specifications before cutting.
Suitable for Fabrication and Construction
Large cutting discs are commonly used in fabrication workshops and construction environments where steel components need to be cut accurately to the required length.
The 400mm diameter provides substantial cutting capacity when fitted to an appropriate machine, making it suitable for professional fabrication, maintenance, and building projects.
Key Features
- Product type: Steel cutting disc
- Type/range: SF
- Diameter: 400mm
- Thickness: 3.2mm
- Bore diameter: 25.4mm
- Designed for compatible steel
- Suitable for metal fabrication
- Suitable for construction applications
- Suitable for workshops
- Suitable for cutting steel sections and profiles
- For use with compatible cutting equipment
Machine Compatibility
Before fitting the disc, confirm that the cutting machine accepts a 400mm diameter disc with a 25.4mm bore.
The machine’s spindle arrangement, guards, flanges, and operating speed must be compatible with the cutting disc.
Never use a cutting disc on equipment that exceeds the maximum RPM or operating speed marked on the disc.
Safe Use
Abrasive cutting operations can produce sparks, hot material, dust, noise, and flying particles. Appropriate PPE should be worn, including suitable:
- Eye and face protection
- Hearing protection
- Gloves
- Protective clothing
- Safety footwear
- Respiratory protection where required
Ensure the workpiece is properly secured before cutting and keep flammable materials away from the work area.
Never use a disc that is cracked, chipped, damaged, wet, or otherwise unsuitable for safe operation.
Storage and Handling
Store cutting discs in a clean, dry environment and protect them from impact, excessive moisture, and physical damage.
Inspect the disc before every use and follow the disc and machine manufacturers’ safety and operating instructions.
Availability
Available in-store and online at Build It DTM.



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