The Black Spiral Core Bit was created to meet the market demand for a product of the same quality as the Gold Spiral® core bit, but longer, in this case increased to 200 mm, to facilitate operating speed when carrying out jobs. In this case, the core cleaning operation is required 30% less than with 150 mm long core bits. See “Gold Spiral® Core Bit” for technical characteristics. Useful core bit length: 200 mm.
| TECHNICAL TABLE | |
| Cured Concrete / Bricks / Roofing tiles | ★★★★★ |
| Slightly reinforced concrete | ★★★★★ |
| Highly reinforced concrete | ★★★★★ |
| Granite/ Natural stone / Porphyries | ★★★ |
| Marble | |
| Refractories | ★★ |
| Sandstone/Washed gravel slabs | ★★ |
| Double fired ceramic tiles | ★ |
| Single fired ceramic tiles | ★ |
| Porcelain stoneware/Klinker tiles | ★ |
| Fresh cement | ★ |
| Asphalt | ★ |
| Cutting speed | ★★★★★ |
| Average life | ★★★★ |
| sufficient ★ average ★★ good ★★★ excellent ★★★★ super ★★★★★ | |
| CAN BE USED ON THE FOLLOWING MACHINES |










