Our Small Round Head Cutters are extruded from 1% carbon tool steel and induction hardened 2mm into the cutting edge to 63/65 RHC. Those optimum flush feature a set-screw to prolong cutting life and prevent over-travel of the cutting blades. Each style is available with short cushioned ESD safe grip (7200 series) or the long soft cushioned ESD safe grip (7100 series). Made in U.S.A.