1.Hss annular cutter, high-performance
2.stable clamping
3.stable cutting
4.surface treatment
5. high speed steel(M35)
| Type | Size |
| DNHK-40120 | 12*50 |
| DNHK-40130 | 13*50 |
| DNHK-40140 | 14*50 |
| DNHK-40150 | 15*50 |
| DNHK-40160 | 16*50 |
| DNHK-40170 | 17*50 |
| DNHK-40175 | 17.5*50 |
| DNHK-40180 | 18*50 |
| DNHK-40185 | 18.5*50 |
| DNHK-40190 | 19*50 |
| DNHK-40200 | 20*50 |
| DNHK-40210 | 21*50 |
| DNHK-40215 | 21.5*50 |
| DNHK-40220 | 22*50 |
| DNHK-40225 | 22.5*50 |
| DNHK-40230 | 23*50 |
| DNHK-40240 | 24*50 |
| DNHK-40250 | 25*50 |
| DNHK-40260 | 26*50 |
| DNHK-40270 | 27*50 |
| DNHK-40280 | 28*50 |
| DNHK-40290 | 29*50 |
| DNHK-40300 | 30*50 |
| DNHK-40310 | 31*50 |
| DNHK-40320 | 32*50 |
| DNHK-40330 | 33*50 |
| DNHK-40340 | 34*50 |
| DNHK-40350 | 35*50 |
| DNHK-40360 | 36*50 |
| DNHK-40370 | 37*50 |
| DNHK-40380 | 38*50 |
| DNHK-40390 | 39*50 |
| DNHK-40400 | 40*50 |
| DNHX-40410 | 41*50 |
| DNHX-40420 | 42*50 |
| DNHX-40430 | 43*50 |
| DNHX-40440 | 44*50 |
| DNHX-40450 | 45*50 |
| DNHX-40460 | 46*50 |
| DNHX-40470 | 47*50 |
| DNHX-40480 | 48*50 |
| DNHX-40490 | 49*50 |
| DNHX-40500 | 50*50 |
| DNHX-40510 | 51*50 |
| DNHX-40520 | 52*50 |
| DNHX-40530 | 53*50 |
| DNHX-40540 | 54*50 |
| DNHX-40550 | 55*50 |
| DNHX-40560 | 56*50 |
| DNHX-40570 | 57*50 |
| DNHX-40580 | 58*50 |
| DNHX-40590 | 59*50 |
| DNHX-40600 | 60*50 |
| DNHX-40650 | 65*50 |