48T001 - Walter Lower Flange for 7-Inch and 9-Inch Grinders

Secure Mounting for Heavy-Duty Grinding

The Walter 48T001 Lower Flange is a critical component designed to ensure the safe and effective operation of your angle grinders. Manufactured by Walter Surface Technologies, a leader in industrial abrasive solutions, this flange acts as the inner backing plate for mounting abrasive wheels. It is specifically engineered to fit spindles with a 5/8"-11 thread, which is the industry standard for most medium to large angle grinders used in North America.

When using high-speed abrasive tools, precision is paramount. This lower flange provides a perfectly flat and stable surface against which the grinding wheel sits. It is designed primarily for 7-inch and 9-inch depressed center wheels (Type 27). By ensuring the wheel is properly seated, the flange helps eliminate wobble and vibration, which not only improves the quality of the finish but also significantly extends the life of the grinding wheel and the power tool itself.

Genuine Walter Quality

Using genuine replacement parts like the 48T001 ensures compatibility and safety. Generic flanges may not possess the correct dimensions or material hardness required to withstand the torque and heat generated during heavy material removal. This flange is built from durable steel to resist wear and deformation over time.

Application & Compatibility

This accessory is essential for fabricators and metalworkers using Walter grinders or compatible 5/8"-11 spindle tools. It serves as the base upon which the wheel rests before the outer clamping nut is tightened. Whether you are grinding welds, beveling steel, or cutting structural metal, a secure flange is the first step in operator safety.

• Precision Fit: Matches 5/8"-11 spindles perfectly.


• Safety First: Prevents wheel slippage and reduces vibration.


• Versatile: Suitable for both 7" and 9" wheel setups.