| Mã đặt hàng | D | dh6 | l1 | l2 | l3 | l4 | Wheel adjustment max. | Wheel adjustment D max. | Turning plates | |
| mm | mm | mm | mm | mm | mm | mm | mm | |||
| 256355.0040 | 12 | 20 | 125 | 75 | 63 | 60 | 0.25 | 12.5 | 880-01...C/P | |
| 256355.0050 | 12.5 | 20 | 128 | 78 | 65 | 63 | 0.25 | 13 | 880-01...C/P | |
| 256355.0060 | 12.7 | 20 | 129 | 79 | 66 | 64 | 0.25 | 13.2 | 880-01...C/P | |
| 256355.0070 | 13 | 20 | 131 | 81 | 68 | 65 | 0.25 | 13.5 | 880-01...C/P | |
| 256355.0080 | 13.5 | 20 | 134 | 84 | 71 | 68 | 0.25 | 14 | 880-01...C/P | |
| 256355.0100 | 14 | 20 | 136 | 86 | 73 | 70 | 0.5 | 15 | 880-02...C/P | |
| 256355.0200 | 14.5 | 20 | 139 | 89 | 75 | 72 | 0.5 | 15.4 | 880-02...C/P | |
| 256355.0300 | 15 | 20 | 142 | 92 | 78 | 75 | 0.4 | 15.8 | 880-02...C/P | |
| 256355.0400 | 16 | 20 | 148 | 98 | 83 | 80 | 0.3 | 16.6 | 880-02...C/P | |
| 256355.0500 | 16.5 | 20 | 151 | 101 | 86 | 83 | 0.6 | 17.7 | 880-03...C/P | |
| 256355.0600 | 17 | 20 | 153 | 103 | 88 | 85 | 0.6 | 18.2 | 880-03...C/P | |
| 256355.0700 | 17.5 | 25 | 163 | 107 | 91 | 88 | 0.5 | 18.5 | 880-03...C/P | |
| 256355.0800 | 18 | 25 | 165 | 109 | 93 | 90 | 0.4 | 18.8 | 880-03...C/P | |
| 256355.0900 | 19 | 25 | 170 | 114 | 98 | 95 | 0.3 | 19.6 | 880-03...C/P | |
| 256355.1000 | 20 | 25 | 177 | 121 | 104 | 100 | 0.9 | 21.8 | 880-04...C/P | |
| 256355.1100 | 22 | 25 | 187 | 131 | 113 | 110 | 0.6 | 23.2 | 880-04...C/P | |
| 256355.1200 | 23 | 25 | 194 | 138 | 119 | 116 | 0.5 | 24 | 880-04...C/P | |
| 256355.1300 | 24 | 25 | 199 | 143 | 124 | 120 | 1.1 | 26.2 | 880-05...C/P | |
| 256355.1400 | 25 | 25 | 205 | 149 | 129 | 125 | 1 | 27 | 880-05...C/P | |
| 256355.1500 | 27 | 32 | 219 | 159 | 138 | 135 | 0.7 | 28.4 | 880-05...C/P | |
| 256355.1600 | 29 | 32 | 231 | 171 | 149 | 146 | 0.5 | 30 | 880-05...C/P | |
| 256355.1700 | 30 | 32 | 237 | 177 | 154 | 150 | 1.1 | 32.2 | 880-06...C/P | |
Drilling depths 5 x D, with internal cooling, cylindrcal shank with flat to ISO 9766.
Design / application
Robust spiral design for high productivity. The cooling-lubricant bores are located in the area of the
periphery, following the twist, thus permitting optimal chip channel design and maximum coolinglubricant flow. Large chip channels and unhindered chip removal guarantee a good drilling quality
and problem-free machining. The reliable tool for unmanned production. Indexable insert efficiency
and productivity - no re-sharpening.
• Bore tolerance: ±0.00 / +0.40 mm.
• Surface quality: Ra 1...3 µm.
• Cooling lubricant: Emulsion.
Corresponding inserts:
256360 Cutting insert COROMANT for CoroDrill 880
Note: Two different inserts are required, 880...C / 880...P.
Package content: supplied without indexable inserts
