Milwaukee 43-72-0550 Bit HolderThis part is compatible with the following machines:Milwaukee2601-20 (SER B28A) 1/2" Compact Driver Drill2601-22 (SER B28A) 1/2" Compact Driver Drill2601-20 (B28B) 1/2" Compact Driver Drill2601-20 (B28C) 1/2" Compact Driver Drill2601-20 (SER B28D) 1/2" Compact Driver Drill2601-059 (SER D36A) 1/2" Compact Driver Drill2601-059 (SER D36C) 1/2" Compact Driver Drill2601-21 1/2" Compact Driver Drill2602-22DC M18 1/2" Compact Hammer Drill2606-22CT M18 1/2" Drill Driver2607-20 M18 1/2" Hammer Driver2607-22 M18 1/2" Hammer Driver2607-22CT M18 1/2" Hammer Driver2750-20 (G41A) M18 Brushless 1/42702-20 M18 1/2" Compact Brushless Hammer Drill/Driver