Descaling Kiln Shell w/Air Hammer. Reported Rt hand hurting which brick had fell on earlier, wanted to quit for the day, Sat. am, 4/08. We received call noon Tues. 4/11. ""fractures to Rt Hand"". getting treatment. Med Asses: ""Closed fracture base of 5th metacarpal bone Rt hand."" Splint placed. Return to ""Modified Work""--no impact tools w/Rt hand. Also referred to Orthopedic Dr.