WHILE PLACING TOOLS ON THE BACKHOE THE EMPLOYEE HAD HIS RIGHT HAND ON THE OUTRIGGER FOR SUPPORT. THE TOOLS SLID OFF THE FENDER, LANDING ON THE RIGHT BOOM SWING PEDAL CAUSING THE BOOM TO SWING RIGHT, PINNING HIS RIGHT HAND. ANOTHER EMPLOYEE HAD TO REMOVE THE TOOLS TO FREE HIM. IT DID NOT BREAK THE SKIN ON HIS HAND BUT BROKE SOME SMALL BONES.