Describe Machined Lock Nuts - Replacement flange for electric angle grinders. Features: Material: These durable iron flanges are a great alternative to angle grinders. angle. Suitable for: Suitable for cutting and grinding discs. Cutting blade: 20 mm, 22 mm inner hole cutting blade can be installed (not included). < p>Dimensions: (approx.) 40mm in diameter, 10mm in inner diameter. Mini size for transport and storage. Specifications: Model: Modified Model 100 Model 125 Material: Iron > Dimensions: (approx) 40mm diameter, 10mm inner diameter Includes: 2 X Flanges.