For Chamfering and Countersinking Applications • M25™ Series Chamfer Mills M25 M25 Series Chamfer Mills are the ideal tool of choice for milling all steel, stainless steel, and cast iron materials. With clearance for back-chamfer operations, the M25 Series will help streamline your most challenging milling operations. • Strong tool design for optimum insert support. • 45˚ lead angle for most chamfering applications. Clearance for back-chamfer operations. Strong tool design for optimum insert support. 45° lead angle for most chamfering applications. I2 widia.com