K30 drilling milling reaming tungsten carbide blank with helical coolant holes
ISO K30
Cobalt: 10%
Outer diameter: 12.3mm +0.3
Inner diameter: 1.40 +/-0.15
TK: 6.3mm
Pitch: 65.30mm
Length: 100mm +3mm
Surface roughness: Raw sintered Ra 6.3 or as required
Application: The general grade with very stable and excellent performance covers the cutting processing of most P, M, K, N materials. Suitable for drilling, milling, and reaming.
Grade datasheet:
| Binder | Hardness | T.R.S | Density | Grain size | ISO | | HRA | HV10 | | 10% | 91.8 | 1600 | 3800 | 14.45 | Ultra fine | k30 | |
For more grades details, please kindly check the general datasheet in the following details:
Regular size for two helical coolant rods 30°:
| Outer Diameter mm | TK mm | Inner Diameter mm | Deviation of holes
position≤(mm) a | Pitch mm |
| OD | Tol. | TK | Tol. | ID | Tol. | P | Tol. |
| 3.30 | +0/+0.3 | 1.7 | -0.3/0 | 0.400 | ±0.1 | 0.80 | 16.32 | ±0.23 |
| 4.30 | +0/+0.4 | 2.2 | -0.3/0 | 0.600 | ±0.15 | 0.80 | 21.77 | ±0.31 |
| 5.30 | 2.6 | -0.4/0 | 0.700 | ±0.15 | 0.10 | 27.21 | ±0.38 |
| 6.30 | 2.6 | -0.4/0 | 0.700 | ±0.15 | 0.13 | 32.65 | ±0.46 |
| 6.30 | 2.6 | -0.4/0 | 1.000 | ±0.15 | 0.15 | 32.65 | ±0.46 |
| 7.30 | 3.7 | -0.4/0 | 1.000 | ±0.15 | 0.15 | 38.09 | ±0.54 |
| 8.30 | 4.0 | -0.4/0 | 1.000 | ±0.15 | 0.15 | 43.53 | ±0.62 |
| 8.30 | 3.5 | -0.4/0 | 1.000 | ±0.15 | 0.15 | 42.53 | ±0.62 |
| 8.30 | 2.8 | -0.4/0 | 1.000 | ±0.15 | 0.15 | 43.53 | ±0.62 |
| 9.30 | 4.8 | -0.6/0 | 1.400 | ±0.15 | 0.20 | 48.97 | ±0.62 |
| 10.30 | +0/+0.6 | 4.8 | -0.6/0 | 1.400 | ±0.15 | 0.20 | 54.41 | ±0.77 |
| 10.30 | 2.6 | -0.4/0 | 0.700 | ±0.15 | 0.20 | 54.41 | ±0.77 |
| 10.30 | 3.0 | -0.4/0 | 1.000 | ±0.15 | 0.20 | 54.41 | ±0.77 |
| 10.30 | 5.0 | -0.6/0 | 1.400 | ±0.15 | 0.20 | 54.41 | ±0.77 |
| 11.30 | 5.3 | -0.8/0 | 1.400 | ±0.15 | 0.28 | 59.86 | ±0.85 |
| 12.30 | 6.3 | -0.8/0 | 1.400 | ±0.15 | 0.30 | 65.3 | ±0.92 |
| 12.30 | 6.0 | -0.8/0 | 1.750 | ±0.2 | 0.30 | 65.3 | ±1.00 |
| 13.3 | 6.5 | -0.8/0 | 1.750 | ±0.2 | 0.34 | 70.74 | ±1.08 |
| 14.3 | 7.1 | -0.8/0 | 1.750 | ±0.2 | 0.37 | 16.18 | ±1.08 |
| 14.3 | 3.5 | -0.4/0 | 0.800 | ±0.15 | 0.37 | 76.18 | ±1.08 |
| 14.3 | 4.5 | -0.6/0 | 1.400 | ±0.15 | 0.37 | 76.18 | ±1.08 |
| 15.3 | 7.7 | -0.8/0 | 1.750 | ±0.2 | 0.4 | 81.62 | ±1.08 |
| 16.3 | 8.3 | -0.8/0 | 1.750 | ±0.2 | 0.4 | 87.06 | ±1.23 |
| 16.3 | 8 | -0.8/0 | 2.000 | ±0.2 | 0.4 | 87.06 | ±1.23 |
| 17.3 | 8.9 | -0.8/0 | 1.750 | ±0.2 | 0.47 | 92.5 | ±1.31 |
| 18.3 | 9.55 | -0.8/0 | 2.000 | ±0.2 | 0.5 | 97.95 | ±1.38 |
| 18.3 | 9.15 | -0.8/0 | 1.750 | ±0.2 | 0.5 | 97.95 | ±1.38 |
| 19.3 | 10 | -0.8/0 | 2.000 | ±0.2 | 0.5 | 103.39 | ±1.46 |
| 20.3 | 10.4 | -1.0/0 | 2.000 | ±0.2 | 0.5 | 108.83 | ±1.54 |
General Tolerance for ground carbide rods
| General tolerance for the h6 finished ground solid carbide rods |
| Diameter | Tolerance μm | | Length | Tolerance | | Straightness | Tolerance | | Circularity | Tolerances |
| ＜3.0 | -6/0 | ＜100.0 | +0.5/+1.0 | ＜4.0 | 0.07 | <3,0 | 2,0 micron |
| 3.0-6.0 | -8/0 | 100.0-165.0 | +1.0/+2.5 | 4.5-5.0 | 0.06 | 3,0- 6,0 | 2,5 micron |
| 6.0-1.0 | -9/0 | 165.0-335.0 | +1.0/+6.0 | 5.5-12 | 0.05 | 6,1-10,0 | 3,0 micron |
| 10.0-18.0 | -11/0 | | ＞12.5 | 0.04 | 10,1-18,0 | 3,5 micron |
| 18.0-30.0 | -13/0 | | 18,1- 30,0 | 4,0 micron |
| 30.0-50.0 | -16/0 | 30,1- 50,0 | 5,0 micron |
Our tungsten carbide rods:
- 100% virgin material, no recycled material
- Spray drying tower and HIP sintering furnace
- Constant excellent quality
- Large stock for all sizes, the regular products can be shipped in 3 days, and the special rods can be ground in one week.
- 100% inspected before delivery. The inspection including raw material and dimension report will be sent you before delivery
- Excellent grinding quality, Straightless and circularity could be 0.05 or 0.02.
Carbide grades
What we can provide
