Catalog : Boring Equipment : Block Sleeve Counterbores
The Mira BB machines counterbore to exact depth and parallel to the block surface quickly and easily. The Mira BB unit is hand driven. It is fixed by means of a powerful electromagnet and is provided with a horizontal feed for a smooth “lathe action” tool movement. This portable, dependable unit works easily in the shop or in your vehicle.
Block Sleeve Counterbores
The Mira BB machines counterbore to exact depth and parallel to the block surface quickly and easily. The Mira BB unit is hand driven. It is fixed by means of a powerful electromagnet and is provided with a horizontal feed for a smooth “lathe action” tool movement. This portable, dependable unit works easily in the shop or in your vehicle.| Specifications | BB3700M | BB GIANT |
| Unit Range | 2 7/8” – 7 3/4” | 2 7/8" - 8 7/8" |
| Std. Tool | MB137 | MB89 |
| Std. Tool Range | 5 1/8" - 6 11/16" | 6 1/4" - 7 25/32" |
| Radial Feed/Rev. | .006" | .006" |
| Unit Weight | 11 lbs. | 13 lbs. |
| Electrics | 115V, 1Ø | 115V, 1Ø |
| Shipping Weight | 25 lbs. | 27 lbs. |