HRA 93.5 Tungsten Carbide Helical Coolant Holes Rods Unground Carbide Blank Rods
Specifications of OUQI Two Helical Coolant Holes Rods with 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 |
Technical parameters:
| General tolerance for the raw sintered solid carbide rods |
| Diameter | Tolerance | | Length | Tolerance | | Straightness | Tolerance |
| 0,5- 3,5 | +0,25/+0,35 | ＜100.0 | +0.5/+1.0 | 0,6-4 | 0,10 |
| 4,0- 6,0 | +0,25/+0,40 | 100.0-165.0 | +1.0/+2.5 | 4,5-8 | 0,12 |
| 6,5-12,0 | +0,30/+0,45 | 165.0-335.0 | +1.0/+6.0 | 8,5-12,0 | 0,15 |
| 12,5-16,0 | +0,35/+0,50 | | 12,5 - 20 | 0,20 |
| 16,5- 22,0 | +0,40/+0,55 | ≥20,5 | 0,24 |
| 22,5-45,0 | +0,45/+0,60 | | |
Grades for tungsten carbide rods:
| Grade | ISO Code | Grain size
μm | Cobalt % | Density
g/cm3 | Hardness | T.R.S |
| | HV30 | HRA | N/mm2 | KPSI |
| YF06 | K05‐K10 | 0.5 | 6.0 | 14.90 | 1850 | 93.5 | 3800 | 553.9 |
| YL10A | K10‐K20 | 0.8 | 8.0 | 14.65 | 1780 | 92.8 | 4200 | 609.5 |
| YL10.2 | K20‐K30 | 0.8 | 10.0 | 14.42 | 1600 | 91.5 | 4000 | 580 |
| XF30 | K30‐K40 | 0.6 | 12.0 | 14.10 | 1700 | 92.5 | 4000 | 580 |
Recommended Application
| Grade | Application |
| YF06 | Suitable for machining composite materials, such as aluminum‐magnesium alloys, plastics, reinforced plastics, carbon, fiber, iron‐based alloys, etc. It is recommended for making big PCB drills of ф3.2‐6.3mm, micro drills of ф0.8‐3.2mm, micro-milling tools and reamers, etc. |
| YL10A | It is suitable for machining cast iron, aluminum alloys, etc. also for machining common steels.
It is recommended for the drilling of cast iron and aluminum alloys. |
| YL10.2 | It is suitable for machining common steel, cast iron, stainless steel, heat‐resistant steel, nickel-based alloys, titanium alloys, etc. It is recommended for making conventional tools, such as twist drills, end drills, screw taps, etc. |
| XF30 | It is suitable for machining titanium alloy, heat‐resistant alloys, stainless steel, hardened steel, grey cast iron, glass‐fiber Reinforced plastics, composite materials, etc. It is recommended to make drills and milling tools, etc. |
