3×D Type Toolholder Dimensions No. of Inserts Dimension (mm) Spare Parts Max. Clamp Screw Wrench Plug Applicable Inserts Description Std. Offset φDc L1 L2 L3 φd φd1 Rc (Radial) K53 (mm) S40 -DRZ3399-12 ● 33 203 134 99 +2.9 -DRZ34102-12 ● 34 207 138 102 +2.7 -DRZ35105-12 ● 35 209 140 105 +2.4 -DRZ36108-12 ● 2 36 213 144 108 40 55 Rc1/4 +2.2 SB-5085TR DT-20 GP-2 ZCMT12T306 -DRZ37111-12 ● 37 215 146 111 +1.9 ZCMT12T304SP -DRZ38114-12 ● 38 218 149 114 +1.7 -DRZ39117-12 ● 39 221 152 117 +1.4 -DRZ40120-12 ● 40 222 153 120 +1.2 -DRZ41123-15 ● 41 224 155 123 +4.0 -DRZ42126-15 ● 42 227 158 126 +3.7 -DRZ43129-15 ● 43 230 161 129 55 +3.5 -DRZ44132-15 ● 44 233 164 132 +3.2 -DRZ45135-15 ● 45 234 165 135 +3.0 -DRZ46138-15 ● 46 241 172 138 +2.7 ZCMT150408 -DRZ47141-15 ●2 47 245 176 141 40 Rc1/4 +2.5 SB-5085TR DT-20 GP-2 ZCMT150406SP -DRZ48144-15 ● 48 248 179 144 +2.2 -DRZ49147-15 ● 49 250 181 147 60 +2.0 -DRZ50150-15 ● 50 251 182 150 +1.7 -DRZ51153-15 ● 51 254 185 153 +1.2 -DRZ52156-15 ● 52 257 188 156 +1.0 -DRZ53159-15 ● 53 260 191 159 +0.7 -DRZ54162-20 ● 54 266 197 162 +5.0 -DRZ55165-20 ● 55 269 200 165 +4.7 K -DRZ56168-20 ●2 56 272 203 168 40 65 Rc1/4 +4.4 SB-60120TR DT-25 GP-2 ZCMT200608 -DRZ57171-20 ● 57 275 206 171 +4.1 -DRZ58174-20 ● 58 278 209 174 +3.8 -DRZ59177-20 ● 59 281 212 177 +3.5 · When offset drilling, reduce feed rate to 0.08mm/rev or less. Recommended Cutting Conditions K65 Drilling · Hole Dia. Tolerance (3D type) Dc Hole Dia. Tolerance (mm) 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 K59