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Tungsten Carbide Standard 2 Blade High-speed 33mm Drill Bits
1Indentified by Zoller
2TiALN coated improve the cutter life
3Better resistance in hardness and toughness
4Special for drilling hard metal
1.The feature of high-speed drill bits:
--the diameter of flute: 0.5-9.5 mm
--the blade length:3-40mm
--the over length of drill bits:55-90mm
2.We suply Tungsten carbide high-speed drill bits ,twist drill bits ,center drill bits ,and 60/90/120 degree spotting drills
3.The HRC45 carbide drill bits are made from zhuzhou material ,HRC 55 are made from CB carbide ,
HRC 60 carbide drill bits are made from Kennametal material ,HRC 65 are made from Sandvik material
Grade Recommend
| Grade | Hardness HRA(hv) | Giain size | T.R.S(M Pa) | Performances &applications recommended |
| YG25 | 90-91 | 0.7um | 2500-2800 | Good Wear resistance,shuit for processing hard wood ,cost iron ,copper ,A3 steel |
| YL10.2 | 91-91.5 | 0.6um | >3800 | Suit for processing Die Steel,aluminum alloy,stainless steel,cat iron ,copper |
| Kennametal 2210 | 91.5 | 0.5um | >4300 | Suit for processing Hardneed steel ,hardneed stainless steel ,heat treated material |
| Germany AF K34 | 94 | 0.4um | 5000-6000 | good grain size ,Fine carbide,high wear resistance,high bending strength,suit for fishing processing |
We can also produce special drill bits according your requirement .
| Blade diameter | Blade length | over length | shank |
| 0.5 | 3 | 50 | 3 |
| 0.6 | 3 | ||
| 0.7 | 4 | ||
| 0.8 | 4 | ||
| 0.9 | 5 | ||
| 1 | 6 | ||
| 1.1 | 7 | ||
| 1.2 | 8 | ||
| 1.3 | 8 | ||
| 1.4 | 9 | ||
| 2 | 12 | ||
| 2.5 | 14 | ||
| 3 | 16 | ||
| 3.5 | 20 | 55 | 4 |
| 4 | 22 | ||
| 4.5 | 24 | 24 | 6 |
| 5 | 26 | 26 | 6 |
| 5.5 | 28 | 75 | 6 |
| 6 | 28 | 75 | 6 |
| 6.5 | 31 | 80 | 8 |
| 7 | 34 | 80 | 8 |
| 7.5 | 34 | 80 | 8 |
| 8 | 37 | 80 | 8 |
| 8.5 | 37 | 90 | 10 |
| 9 | 40 | 90 | 10 |
| 9.5 | 40 | 90 | 10 |
About Factory
Changzhou Zhengheyuan Tool Co.,Ltd is specialized in the manufacture ,sale and technology services of CNC tools .We provide the highest quality end mill tools at most competitive price with the shortest delivery time and technology services in all aspect to CNC machine tool user all over the world !
Product show
Tungsten Carbide Standard 2 Blade High-speed 33mm Drill Bits