3M Fibre Disc 782C

The 3M Fibre Disc 782C is a premium mineral fiber grinding disc engineered for ultra‑rapid cutting of carbon steel, ideal for heavy‑duty applications such as weld grinding, beveling, and edge chamfering.

Key Features

• Precision Shaped Ceramic abrasive (PSG) for higher cut rates and longer life
• Stiff fiber backing with a strong resin bond for durability and tear‑resistance
• Available in multiple grit options (36+, 60+, 80+)
• Compatible with 3M disc pad face plates and hubs (center‑hole, GL, TN styles)

Specifications

• Abrasive Material: Precision Shaped Ceramic
• Backing Material: Fibre
• Bond Type: Resin
• Grit: 36+, 60+, 80+
• Overall Diameter: 4 in, 4.5 in, 5 in, 7 in, 9.125 in (imperial)
• Overall Diameter: 101.6 mm, 114.3 mm, 127 mm, 177.8 mm, 231.775 mm (metric)
• Attachment Types: Center Hole, GL, TN
• Maximum Speed: up to 15,300 rpm (depending on size)
• Color: Maroon

Applications

• Edge chamfering
• Beveling
• Deburring
• Weld removal and grinding
• General grinding and surface preparation for carbon steel