H650 Series CARBIDE ENDMILLS - High Helix Square Type - 4F . TOP ARCO coating provides a superior wear resistance. . Suitable for HRC 50 and over HRC 50 Hardened Steel, also maximum up to HRC 65. . UMG Carbide with Incredible toughness and wear resistance at hi speeds. . Good surface and long tool life. . The coating can change to SICO, the prices will differ. Dia. CL OAL Shank Flutes Order No. (d) (L1) (L) (D) (F) EHSFH4 EHSFH401000A 1.0 3 50 4 4 EHSSH4 EHSFH401500A 1.5 4 50 4 4 EHSFH402000A 2.0 5 50 4 4 EHSFH402500A 2.5 6 50 4 4 EHSFH403000A 3.0 8 50 4 4 EHSFH404000A 4.0 10 50 4 4 EHSSH404000A 4.0 10 50 6 4 EHSSH405000A 5.0 13 50 6 4 d EHSSH406000A 6.0 15 50 6 4 EHSSH408000A 8.0 20 60 8 4 EHSSH410000A 10.0 25 75 10 4 EHSSH412000A 12.0 30 75 12 4 EHSSH416000A 16.0 35 100 16 4 L1 EHSSH420000A 20.0 45 100 20 4 L WORKING MATERIAL HARDENED STEEL HARDENED STEEL HARDENED STEEL D CODE SKT, SKD SKT, SKD SKT, SKD HARDNESS HRC 35~45 HRC 45~55 HRC 55~60 Vc 143 M/min 124 M/min 103 M/min FEED FEED FEED DIAMETER R.P.M (mm/min) R.P.M (mm/min) R.P.M (mm/min) 3MM 15,340 1,150 13,000 830 10,920 500 4MM 11,440 1,070 9,880 780 8,190 460 5MM 9,100 990 7,800 730 6,500 420 6MM 7,670 910 6,500 660 5,460 400 8MM 5,720 830 4,940 610 4,160 400 10MM 4,550 830 3,900 610 3,315 400 12MM 3,770 830 3,250 610 2,730 400 65 d Tolerance Ø ≦ 12 0 ~ -0.02 Milling Amount Ø > 12 0 ~ -0.03 (mm) The Feed & RPM may be changed depending on the M/C Conditions, Lubricating & Cooling systems. A04