of 0 05 inches 1 27 mm to a diameter of 1 2 inches 3 05 cm the diameter of the wedge 30 then increases at a 6 5 degree angle to a diameter of about 1 70 inches 4 32 cm at the large diameter end 36 the central channel 42 has a 1 inch 2 54 cm diameter at the small diameter end 38 which decreases in diameter at a 5 degree angle for a length of about 0 57 inches 1 45 cm to a diameter of 0 9 inches 2 29 cm the central channel 42 maintains a constant diameter of 0 9 inches 2 29 cm for a length of about 1 08 inches 2 74 cm then increases in diameter at a 45 degree angle for a length of about 0 35 inches 8 9 mm to the large diameter end 36 in this embodiment the outer surface of the wedge 30 corresponds with the inner surface of the transition region 18 of the ball bat 10 the wedge 30 may be made of any suitable material such as for example rubber or preferably ethylene propylene diene monomer u201c epdm u201d rubber with a hardness between 40 50 shore a ideally about 45 shore a the socket assembly 26 is made by attaching the socket 28 to the small diameter end 38 of the wedge 30 such that the handle 20 may serially fit inside the central channel 34 of the socket 28 and the central channel 42 of the wedge 30 as.