Patent ID: 7101176

Claim:
A rotary float, comprising: an elongated tubular arm having a drive shaft rotatably mounted therethrough and projecting from opposing forward and rearward ends thereof; a coupler on a rearward end of the drive shaft, for selectively and removably coupling a drive unit to the drive shaft, to thereby selectively rotate the drive shaft within the arm; a bit connected to a forward end of the drive shaft for rotation therewith; an elongated tubular cap removably secured over the bit to the forward end of the tubular arm, said cap having an opening with dimensions to reveal a sufficient portion of the bit to permit the bit to contact and engage a surface adjacent the cap; means for removably securing said cap on said tubular arm, said means for removably securing the cap adapted to permit selective rotation of the cap completely about a longitudinal axis of the bit; and said means for removably securing the cap includes means for frictionally securing said cap in position on said tubular arm; said means for frictionally securing said cap including a resilient, compressible O-ring mounted around a circumference of the tubular arm, the O-ring having an overall outer diameter greater than an inner diameter of the cap.