R0.5 TO R12.5 HSS R Knife Corner Rounding Radius End Mill Cutter 2 or 4 Flutes
R1 TO R12.5, 2 OR 4 FLUTES HSS CORNER ROUNDING RADIUS END MILL CUTTER - SELECT. R1-R4 have 2 flutes, R5-R12.5 have 4 flutes. Made of high quality super-hard high speed steel with high hardness and good durability.