Norton DG145 9LL1B 10x0.75x1in MSL Electroplated Diamond Grinding Wheel

This is a new Norton MSL (Metal Single Layer) electroplated superabrasive grinding wheel, grade DG145, spec 9LL1B, sized 10.0" O.D. x 0.75" face width x 1.000" arbor bore, rated 9554 RPM, manufactured by Norton Saint-Gobain (US Pat. #5832360). The "9LL1B" spec decodes as: abrasive type 9 (diamond), bond type L (electroplated/Ironclad), layer L (single layer), shape 1B (straight wheel with full-face diamond rim), confirming this is a type 1B straight-profile wheel with a continuous electroplated diamond rim on the OD face and both chamfered edges — the "Winter" Ironclad heavy-duty foundry designation indicates it is engineered for aggressive stock removal on ferrous castings, ductile iron, and hard-to-grind foundry materials. The electroplated (single-layer Ironclad) bond delivers an open, free-cutting structure with maximum diamond exposure, producing aggressive cut rates and cool cutting without glazing, making it well-suited for snagging, fettling, and conditioning of iron and steel castings on compatible pedestal or swing-frame foundry grinders. The steel hub features a bolt-circle pattern and a 1.000" center bore for secure flanged mounting; serial number SN-72318-3, job number 113738805, MOS 9554 are all clearly marked on the wheel face and confirmed from the box label (UPC 66260189304).

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