Catalog : Boring Equipment : Block Sleeve Counterbores

Block Sleeve Counterbores

BB_Giant_and_BB_3700MThe 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.