Roughers, or "hoggers", are useful for rapid removal of large amounts of material. The chip groove design allows for more cutting fluid to the cutting edge and dissipates heat better. There is a wide range of variations in rougher profile forms for different material groups. The coarser the pitch of the roughing edge, the more material removed and the less smooth the finish. In addition, most roughers have eccentric relief so regrinding can be done only using the cutting face. This saves you if you have access to regrinding equipment.
Series 621 - Fine Pitch Roughers (.048 Pitch) Series 620 - Medium Pitch Rougher (.062 Pitch) 622 - Coarse Pitch Roughers (.105 Pitch)
