... automatic machines and manual machines HSS/HSS-E Saw Blade DISC saw bladeHigh-speed saw bladeItem No.: DFS-9OEM: acceptPacking: 1pc/white box ... solid high speed steelFEATURESTypical Hardness of Rc 63-66 hollow ground side relief and a central hub with drive slots or ... metal: billets, tube, profile, bar, rounds,etc. HSS/HSS-E Saw Blade