Adjustable Woodwind Key Swedging Tool with Thrust Bearing The new F81 Swedger now comes equipped with thrust bearing for smoother action when swedging. Comes with 3 collets including the addition of the new .106 collet for the smaller keys on the oboe and piccolo. The collets are now: .106, .149 and .187 which is approximately 2.69mm, 3.78mm and 4.75mm. The .187 closes to about .150; the .149 closes to about .118; the .106 closes to about .075. This completes our swedging collet series; with the addition of the 3 new, smaller collets to the P60 Rotary Bearing Tool that can now be used on large keys too. F81 Swedging Tool with Thrust Bearing and 3 collets F81B Body, Knob and Thrust Bearing only F80C-106 Collet .106" F80C-149 Collet .149 F80C-187 Collet .187 F80CS Special Size Collet - please note size in note section of order.