Large grinding wheel with 150 outer diameter, high finish, reciprocating grinding High precision: The grinding angle is standard and uniform, the cutting edge is sharp and flat, and the cutting is light and agile without deviation Fast efficiency: automatic indexing and polishing, saving time and effort, can grind a large number of saw blades in a day Widely applicable: Suitable for general woodworking saw blades, alloy saw blades, aluminum saw blades, and iron cutting saw blades Easy to operate: touch screen control, beginners can easily read it without the need for professional mentors