cnc carbide ball end mills long shank HRC: 55, helix angle:30,R0.5-R10 mm, midle tohigh speed Suit to cutting quenching steel ,stainless steel ,cast iron,nickel alloy and other enhanced composited material with fiberglass. the sizes: (Order No)CuttingShankFluteA.0.LdDlLR0.5×2×4D×75L×2T14275R0.75×3×4D×75L×2T1.54375R1.0×4×4D×75L×2T24475R1.25×5×4D×75L×2T2.54575R1.5×6×4D×75L×2T34675R1.75×7×4D×75L×2T3.54775R2.0×8×4D×75L×2T44875R2.5×10×6D×75L×2T561075R2.5×10×6D×100L×2T5610100R3.0×12×6D×75L×2T661275R3.0×12×6D×100L×2T6612100R3.0×12×6D×150L×2T6612150R4.0×16×8D×75L×2T881675R4.0×16×8D×100L×2T8816100R4.0×16×8D×150L×2T8816150R5.0×20×10D×100L×2T101020100R5.0×20×10D×150L×2T101020150R6.0×24×12D×100L×2T121224100R6.0×24×12D×150L×2T121224150R7.0×28×14D×150L×2T141428150R8.0×32×16D×150L×2T161632150