2×D Type Toolholder Dimensions No. of Inserts Dimension (mm) Spare Parts Max. Clamp Screw Wrench Plug Description Std. Offset Applicable Inserts φDc L1 L2 L3 φd φd1 Rc (Radial) K53 (mm) S40 -DRZ3366-12 ● 33 173 104 66 +2.9 -DRZ3468-12 ● 34 176 107 68 +2.7 -DRZ3570-12 ● 35 177 108 70 +2.4 -DRZ3672-12 ● 2 36 180 111 72 40 55 Rc1/4 +2.2 SB-5085TR DT-20 GP-2 ZCMT12T306 -DRZ3774-12 ● 37 181 112 74 +1.9 ZCMT12T304SP -DRZ3876-12 ● 38 183 114 76 +1.7 -DRZ3978-12 ● 39 185 116 78 +1.4 -DRZ4080-12 ● 40 185 116 80 +1.2 -DRZ4182-15 ● 41 186 117 82 +4.0 -DRZ4284-15 ● 42 188 119 84 +3.7 -DRZ4386-15 ● 43 190 121 86 55 +3.5 -DRZ4488-15 ● 44 192 123 88 +3.2 -DRZ4590-15 ● 45 192 123 90 +3.0 -DRZ4692-15 ● 46 198 129 92 +2.7 ZCMT150408 -DRZ4794-15 ● 2 47 201 132 94 40 Rc1/4 +2.5 SB-5085TR DT-20 GP-2 ZCMT150406SP -DRZ4896-15 ● 48 203 134 96 +2.2 -DRZ4998-15 ● 49 204 135 98 60 +2.0 -DRZ50100-15 ● 50 204 135 100 +1.7 -DRZ51102-15 ● 51 205 136 102 +1.2 -DRZ52104-15 ● 52 205 136 104 +1.0 -DRZ53106-15 ● 53 208 139 106 +0.7 -DRZ54108-20 ● 54 214 145 108 +5.0 -DRZ55110-20 ● 55 215 146 110 +4.7 -DRZ56112-20 ● 2 56 217 148 112 40 65 Rc1/4 +4.4 SB-60120TR DT-25 GP-2 ZCMT200608 -DRZ57114-20 ● 57 219 150 114 +4.1 K -DRZ58116-20 ● 58 221 152 116 +3.8 -DRZ59118-20 ● 59 223 154 118 +3.5 · When offset drilling, reduce feed rate to 0.08mm/rev or less. Recommended Cutting Conditions K65 · Hole Dia. Tolerance (2D type) Dc Hole Dia. Tolerance (mm) Drilling φ13~φ26.5 + 0.20 - 0.10 φ27~φ40 + 0.25 - 0.15 φ41~φ59 + 0.30 - 0.20 * Above is numeric guideline. It may vary depending on machines / workpieces / clamping status / cutting conditions. : Std. Item K57