An On/Off Magnetic Work-Holding Angle With 90 Lb. (40 Kg) Of Hold Force From Magswitch Technology. 45, 60, 90, And 120 Degree Angles Accommodates Flat Or Pipe, Allowing Precise Placement Even In Smaller Spots. Allows For Super Fast Set-Ups And Instant Work-Holding And It Stays Clean; When The Magnet Is Off, Debris Falls Right Off.