The norton india round stone file in 12mm diameter with fine grade offers versatility for medium-sized precision finishing tasks. This 100mm x 12mm 4 x 1 2 in variant type ff244 combines a larger working diameter with fine abrasive grade, making it suitable for a broader range of professional applications. The 12mm diameter provides a larger contact area whilst still maintaining excellent manoeuvrability for curved surfaces and internal profiles. This size strikes an ideal balance between material removal and fine finishing capabilities, making it a popular choice for general tool and die work. The fine grade abrasive ensures high-quality surface finishes on precision machined parts. This variant is particularly effective for chamfering medium-sized components, deburring machined edges, and creating smooth radiused transitions on metal parts. It's an essential tool for workshops requiring reliable finishing performance across various applications. Features and benefits: 12mm diameter for versatile medium-sized applications fine grade delivers excellent surface quality 100mm length for controlled, precise work suitable for general tool and die manufacturing effective for chamfering, deburring, and radiusing operations specifications: stone type: file