221 - Tap and die sets - Each selection includes sets of two taps per dimension: taper and bottoming. -The compositions of Ref 227.SJ1 and 227.SJ2 include cobalt taps (Ref 227.S). -Tray PL.47 and box BT. 109G: For set Ref 221.227J1 and 221.227SJ1. -Tray PL.46 and box BT. 105: For set Ref 221.227J2 and 221.227SJ2.