Bolt Countersink End Mill MEF Bolt Countersinking Shouldering Facing ■ MEF 0 -0.2 φDS φdh7 L φD ℓ L ● Toolholder Dimensions No. of Inserts Dimension (mm) Std. Corner-R(rε) Rake Angle Spare Parts Applicable Inserts M24 Clamp Screw Wrench Description Std. Objective φDL φDs φd L ℓ A.R. R.R. Bolt Size MEF 11-S10 ● 1 11 3.0 10 103 23 M6 SB-2250TR 14-S12 ● 14 4.5 12 108 28 -13° M8 17-S16 ● 2 17.5 7.3 115 35 M10 18-S16 ● 18 7.7 16 117 38 - SPMT060204E-Z 20-S16 ● 20 9.5 120 40 0.4 M12 SB-2260TR DT-7 060208E-Z 22-S20 ● 22 11.4 124 44 - 23-S20 ● 23 12.4 20 126 46 -12° M14 24-S20 ● 24 13.4 128 48 - 25-S20 ● 25 14.4 130 50 - 26-S25 ● 3 26 9.8 132 52 +5° M16 27-S25 ● 27 10.6 134 54 - 28-S25 ● 28 11.5 25 136 56 - 29-S25 ● 29 12.6 138 58 -13° M18 30-S25 ● 30 13.5 140 60 0.8 - SB-3080TR DT-10 SPMT090304E-Z 32-S25 ● 32 15.5 144 64 M20 090308E-Z M 35-S32 ● 35 18.4 150 70 M22 39-S32 ● 39 22.5 32 158 78 M24 43-S32 ● 4 43 26.2 166 86 -12° M27 48-S32 ● 48 31.3 176 96 M30 ・Although Corner-R(rε) pertains to MEF11-S10, φDs=3.0mm. Milling ■ Bolt Countersink (Hexagon Socket Head Cap Screw) φD Nominal M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 Screw Size H φD (mm) 11 14 17.5 20 23 26 29 32 35 39 43 48 Inserts H (mm) 6.5 8.6 10.8 13 15.2 17.5 19.5 21.5 23.5 25.5 29 32 φd Lead Angle 45°/20° φd (mm) 6.6 9 11 14 16 18 20 22 24 26 30 33 Lead Angle Applicable End Mill MEF11 MEF14 MEF17 MEF20 MEF23 MEF26 MEF29 MEF32 MEF35 MEF39 MEF43 MEF48 15° Lead Angle 0° High Feed Multi- Function Slot Mill Ball-nose Radius Others ● : Std. Item M188