Rods unground, with 3 coolant ducts, 30° helix
length: 330 mm
Grade GC-K40UF
Our most universal carbide grade for an exceptionally wide range of applications K40UF is made of ultrafine tungsten carbide with a grain size of 0.7 µm. In combination with a cobalt content of 10 %, this allows for both superior hardness and toughness to be attained. The ultrafine grain carbide grade K40UF is particularly suitable for milling and, on account of its cutting-edge stability, has become our standard grade for high-performance drilling. Well-suited for drilling or milling applications with high-temperature alloys, stainless steels, gray cast iron, titanium alloys, and glass-fiber reinforced plastics.
| Carbide grades: | Item No.: |
| GC-K40UF | 7346 |
| D [mm] | TOL [mm] | BC-Ø [mm] | TOL [mm] | d [mm] | TOL [mm] | a [mm] | Pitch at 30° ± 0.5° [mm] | |
| 4.8 | +0.3 | 2.30 | -0.2 | 0.40 | ±0.10 | ±4° | 24.49 | -0.49/+0.50 |
| 5.3 | +0.3 | 2.60 | -0.3 | 0.40 | ±0.10 | ±4° | 27.21 | -0.54/+0.56 |
| 5.8 | +0.3 | 2.90 | -0.3 | 0.50 | ±0.10 | ±4° | 29.93 | -0.59/+0.61 |
| 6.3 | +0.3 | 2.90 | -0.3 | 0.50 | ±0.10 | ±4° | 32.65 | -0.65/+0.67 |
| 6.8 | +0.3 | 2.90 | -0.3 | 0.50 | ±0.10 | ±4° | 35.37 | -0.70/+0.72 |
| 7.3 | +0.3 | 4.00 | -0.3 | 0.65 | ±0.10 | ±4° | 38.09 | -0.76/+0.78 |
| 7.8 | +0.3 | 4.00 | -0.3 | 0.70 | ±0.10 | ±4° | 40.81 | -0.81/+0.84 |
| 8.3 | +0.3 | 4.00 | -0.3 | 0.70 | ±0.10 | ±4° | 43.53 | -0.86/+0.89 |
| 8.8 | +0.3 | 4.00 | -0.3 | 0.70 | ±0.10 | ±4° | 46.25 | -0.92/+0.95 |
| 9.3 | +0.3 | 5.10 | -0.3 | 0.85 | ±0.15 | ±4° | 48.97 | -0.97/+1.00 |
| 9.8 | +0.3 | 5.10 | -0.3 | 0.85 | ±0.15 | ±4° | 51.69 | -1.03/+1.06 |
| 10.3 | +0.3 | 5.10 | -0.3 | 0.85 | ±0.15 | ±4° | 54.41 | -1.08/+1.11 |
| 10.8 | +0.4 | 5.10 | -0.5 | 0.85 | ±0.15 | ±4° | 57.13 | -1.13/+1.17 |
| 11.3 | +0.4 | 5.70 | -0.5 | 1.10 | ±0.15 | ±4° | 59.86 | -1.19/+1.22 |
| 11.8 | +0.4 | 6.10 | -0.5 | 1.10 | ±0.15 | ±4° | 62.58 | -1.24/+1.28 |
| 12.3 | +0.4 | 6.30 | -0.5 | 1.10 | ±0.15 | ±4° | 65.30 | -1.30/+1.34 |
| 12.8 | +0.4 | 6.30 | -0.5 | 1.10 | ±0.15 | ±4° | 68.02 | -1.35/+1.39 |
| 13.3 | +0.4 | 6.80 | -0.5 | 1.20 | ±0.15 | ±4° | 70.74 | -1.40/+1.45 |
| 13.8 | +0.4 | 7.00 | -0.5 | 1.20 | ±0.15 | ±4° | 73.46 | -1.46/+1.50 |
| 14.3 | +0.4 | 7.30 | -0.5 | 1.40 | ±0.15 | ±4° | 76.18 | -1.51/+1.56 |
| 14.8 | +0.4 | 7.60 | -0.5 | 1.40 | ±0.15 | ±4° | 78.90 | -1.57/+1.61 |
| 15.3 | +0.4 | 7.80 | -0.5 | 1.40 | ±0.15 | ±4° | 81.62 | -1.62/+1.67 |
| 15.8 | +0.4 | 7.80 | -0.5 | 1.40 | ±0.15 | ±4° | 84.34 | -1.67/+1.73 |
| 16.3 | +0.4 | 8.30 | -0.5 | 1.60 | ±0.15 | ±4° | 87.06 | -1.73/+1.78 |
| 16.8 | +0.5 | 8.30 | -0.5 | 1.60 | ±0.20 | ±4° | 89.78 | -1.78/+1.84 |
| 17.3 | +0.5 | 8.60 | -0.5 | 1.60 | ±0.20 | ±4° | 92.50 | -1.84/+1.89 |
| 17.8 | +0.5 | 8.60 | -0.5 | 1.60 | ±0.20 | ±4° | 95.22 | -1.89/+1.95 |
| 18.3 | +0.5 | 9.50 | -0.5 | 1.70 | ±0.20 | ±4° | 97.95 | -1.94/+2.00 |
| 18.8 | +0.5 | 9.50 | -0.5 | 1.70 | ±0.20 | ±4° | 100.67 | -2.00/+2.06 |
| 19.3 | +0.5 | 10.20 | -0.5 | 1.70 | ±0.20 | ±4° | 103.39 | -2.05/+2.12 |
| 20.3 | +0.5 | 10.20 | -0.7 | 1.90 | ±0.25 | ±4° | 108.83 | -2.16/+2.23 |
| 21.3 | +0.5 | 11.10 | -0.7 | 2.00 | ±0.25 | ±4° | 114.27 | -2.27/+2.34 |
| 22.3 | +0.5 | 11.50 | -0.7 | 2.00 | ±0.25 | ±4° | 119.71 | -2.38/+2.45 |
| 23.3 | +0.5 | 11.80 | -0.7 | 2.00 | ±0.25 | ±4° | 125.15 | -2.48/+2.56 |
| 24.3 | +0.5 | 12.10 | -0.7 | 2.00 | ±0.25 | ±4° | 130.59 | -2.59/+2.67 |
| 25.3 | +0.5 | 12.50 | -0.7 | 2.00 | ±0.25 | ±4° | 136.03 | -2.70/+2.78 |
| 26.3 | +0.5 | 13.10 | -0.7 | 2.00 | ±0.25 | ±4° | 141.48 | -2.81/+2.90 |
| 27.3 | +0.5 | 13.60 | -0.9 | 2.50 | ±0.30 | ±4° | 146.92 | -2.92/+3.01 |
| 28.3 | +0.5 | 14.10 | -0.9 | 2.50 | ±0.30 | ±4° | 152.36 | -3.02/+3.12 |
| 29.3 | +0.5 | 14.60 | -0.9 | 2.50 | ±0.30 | ±4° | 157.80 | -3.13/+3.23 |
| 30.3 | +0.5 | 15.10 | -1.2 | 2.50 | ±0.30 | ±4° | 163.24 | -3.24/+3.34 |
| 31.3 | +0.5 | 15.60 | -1.2 | 3.00 | ±0.30 | ±4° | 168.68 | -3.35/+3.45 |
| 32.3 | +0.5 | 16.10 | -1.2 | 3.00 | ±0.30 | ±4° | 174.12 | -3.46/+3.56 |
| 33.3 | +0.5 | 16.60 | -1.2 | 3.00 | ±0.30 | ±4° | 179.57 | -3.57/+3.67 |
Rods unground, with 3 coolant ducts, 30° helix, length : 330 mm