- Engineering Kit 2 - Powerbor PB35 FRV 110v MagDrill, 7 Piece Rotabroach Cutter Kit & LubricantsSpecial Price £395.00 £474.00 Regular Price £670.80Engineering Kit 1 - Powerbor PB35 FRV 110v MagDrill, 7 Piece Rotabroach Cutter KitSpecial Price £375.00 £450.00