含鈷高速鋼
溝長短，提高加工效率
日本製造
| 記號 | 直徑 | 溝長 | 全長 |
| COSD0.2 | 0.2 | 2 | 19 |
| COSD0.3 | 0.3 | 2.5 | 20 |
| COSD0.4 | 0.4 | 4 | 24 |
| COSD0.5 | 0.5 | 5 | 27 |
| COSD0.6 | 0.6 | 5.5 | 30 |
| COSD0.7 | 0.7 | 7.5 | 32 |
| COSD0.8 | 0.8 | 8 | 34 |
| COSD0.9 | 0.9 | 9 | 36 |
| COSD1.0 | 1 | 10 | 40 |
| COSD1.1 | 1.1 | 11 | 42 |
| COSD1.2 | 1.2 | 13 | 42 |
| COSD1.3 | 1.3 | 13 | 45 |
| COSD1.4 | 1.4 | 14.5 | 48 |
| COSD1.5 | 1.5 | 14.5 | 48 |
| COSD1.6 | 1.6 | 16 | 50 |
| COSD1.7 | 1.7 | 16 | 50 |
| COSD1.8 | 1.8 | 17.5 | 52 |
| COSD1.9 | 1.9 | 17.5 | 52 |
| COSD2.0 | 2 | 20 | 55 |
| COSD2.1 | 2.1 | 20 | 55 |
| COSD2.2 | 2.2 | 23 | 58 |
| COSD2.3 | 2.3 | 23 | 58 |
| COSD2.4 | 2.4 | 24.5 | 61 |
| COSD2.5 | 2.5 | 24.5 | 61 |
| COSD2.6 | 2.6 | 26 | 64 |
| COSD2.7 | 2.7 | 26 | 64 |
| COSD2.8 | 2.8 | 27 | 67 |
| COSD2.9 | 2.9 | 29.5 | 71 |
| COSD3.0 | 3 | 29.5 | 71 |
| COSD3.1 | 3.1 | 29.5 | 71 |
| COSD3.2 | 3.2 | 29.5 | 71 |
| COSD3.3 | 3.3 | 31.5 | 73 |
| COSD3.4 | 3.4 | 31.5 | 73 |
| COSD3.5 | 3.5 | 31.5 | 73 |
| COSD3.6 | 3.6 | 33.5 | 76 |
| COSD3.7 | 3.7 | 33.5 | 76 |
| COSD3.8 | 3.8 | 33.5 | 76 |
| COSD3.9 | 3.9 | 36 | 79 |
| COSD4.0 | 4 | 38 | 83 |
| COSD4.1 | 4.1 | 38 | 83 |
| COSD4.2 | 4.2 | 38 | 83 |
| COSD4.3 | 4.3 | 38 | 83 |
| COSD4.4 | 4.4 | 39 | 86 |
| COSD4.5 | 4.5 | 39 | 86 |
| COSD4.6 | 4.6 | 39 | 86 |
| COSD4.7 | 4.7 | 41 | 89 |
| COSD4.8 | 4.8 | 41 | 89 |
| COSD4.9 | 4.9 | 43 | 92 |
| COSD5.0 | 5 | 43 | 92 |
| COSD5.1 | 5.1 | 43 | 92 |
| COSD5.2 | 5.2 | 45 | 95 |
| COSD5.3 | 5.3 | 45 | 95 |
| COSD5.4 | 5.4 | 45 | 95 |
| COSD5.5 | 5.5 | 45 | 95 |
| COSD5.6 | 5.6 | 47 | 98 |
| COSD5.7 | 5.7 | 47 | 98 |
| COSD5.8 | 5.8 | 47 | 98 |
| COSD5.9 | 5.9 | 47 | 98 |
| COSD6.0 | 6 | 49 | 102 |
| COSD6.1 | 6.1 | 49 | 102 |
| COSD6.2 | 6.2 | 49 | 102 |
| COSD6.3 | 6.3 | 49 | 102 |
| COSD6.4 | 6.4 | 51 | 105 |
| COSD6.5 | 6.5 | 51 | 105 |
| COSD6.6 | 6.6 | 51 | 105 |
| COSD6.7 | 6.7 | 51 | 105 |
| COSD6.8 | 6.8 | 51 | 105 |
| COSD6.9 | 6.9 | 51 | 105 |
| COSD7.0 | 7 | 51 | 105 |
| COSD7.1 | 7.1 | 53 | 108 |
| COSD7.2 | 7.2 | 53 | 108 |
| COSD7.3 | 7.3 | 53 | 108 |
| COSD7.4 | 7.4 | 55 | 111 |
| COSD7.5 | 7.5 | 55 | 111 |
| COSD7.6 | 7.6 | 55 | 111 |
| COSD7.7 | 7.7 | 57 | 114 |
| COSD7.8 | 7.8 | 57 | 114 |
| COSD7.9 | 7.9 | 57 | 114 |
| COSD8.0 | 8 | 57 | 114 |
| COSD8.1 | 8.1 | 59 | 117 |
| COSD8.2 | 8.2 | 59 | 117 |
| COSD8.3 | 8.3 | 59 | 117 |
| COSD8.4 | 8.4 | 61 | 121 |
| COSD8.5 | 8.5 | 61 | 121 |
| COSD8.6 | 8.6 | 61 | 121 |
| COSD8.7 | 8.7 | 61 | 121 |
| COSD8.8 | 8.8 | 63 | 124 |
| COSD8.9 | 8.9 | 63 | 124 |
| COSD9.0 | 9 | 63 | 124 |
| COSD9.1 | 9.1 | 63 | 124 |
| COSD9.2 | 9.2 | 65 | 127 |
| COSD9.3 | 9.3 | 65 | 127 |
| COSD9.4 | 9.4 | 65 | 127 |
| COSD9.5 | 9.5 | 65 | 127 |
| COSD9.6 | 9.6 | 67 | 130 |
| COSD9.7 | 9.7 | 67 | 130 |
| COSD9.8 | 9.8 | 67 | 130 |
| COSD9.9 | 9.9 | 67 | 130 |
| COSD10.0 | 10 | 67 | 130 |
| COSD10.1 | 10.1 | 69 | 133 |
| COSD10.2 | 10.2 | 69 | 133 |
| COSD10.3 | 10.3 | 69 | 133 |
| COSD10.4 | 10.4 | 69 | 133 |
| COSD10.5 | 10.5 | 70 | 137 |
| COSD10.6 | 10.6 | 70 | 137 |
| COSD10.7 | 10.7 | 70 | 137 |
| COSD10.8 | 10.8 | 72 | 140 |
| COSD10.9 | 10.9 | 72 | 140 |
| COSD11.0 | 11 | 72 | 140 |
| COSD11.1 | 11.1 | 72 | 140 |
| COSD11.2 | 11.2 | 75 | 143 |
| COSD11.3 | 11.3 | 75 | 143 |
| COSD11.4 | 11.4 | 75 | 143 |
| COSD11.5 | 11.5 | 75 | 143 |
| COSD11.6 | 11.6 | 77 | 146 |
| COSD11.7 | 11.7 | 77 | 146 |
| COSD11.8 | 11.8 | 77 | 146 |
| COSD11.9 | 11.9 | 77 | 146 |
| COSD12.0 | 12 | 78 | 149 |
| COSD12.1 | 12.1 | 78 | 149 |
| COSD12.2 | 12.2 | 78 | 149 |
| COSD12.3 | 12.3 | 78 | 149 |
| COSD12.4 | 12.4 | 80 | 152 |
| COSD12.5 | 12.5 | 80 | 152 |
| COSD12.6 | 12.6 | 80 | 152 |
| COSD12.7 | 12.7 | 80 | 152 |
| COSD12.8 | 12.8 | 80 | 152 |
| COSD12.9 | 12.9 | 80 | 152 |
| COSD13.0 | 13 | 80 | 152 |
