Small screwdriver with wide handle. Use with: 104, 106, 108, 110, 1110DX, 1110DX Pro, 1780, 18W LE, 134D, 1600P, 1600P-DB, 1600P-DBX, 1600P-QC, 2018S, 2039SN, 2041 HARMONY, 2041LX, 2041NX, 2041S, 2041SX, 2049 Harmony, 2049LX, 2049NX, 2049SX, 204D MyLock, 2141S, 2118S, 2139N, 2139S, 2149SX, 2212, 2206, 380, 381, 434DR, 4612TM, 4618LE, 4623LE, 6147, 634D, 644D, 653, 661 (Old), AT2000D, DS3500, Hello Kitty 15822, HD9, HF1012, HF2022, HF504D, Indigo 4, Indigo 14, Indigo 18, Indigo 20, JD1803, JD1814, JD1818, JD1822, JH1104, JH1114, JH1118S, JS1004, JS1008LE, L-108, L-344, L-392, L-393, ML3023, MX3123, NH15, NH1612, NH1616, NH1622, NH22, NH7, QS2250, S-3015, S-3023 Schoolmate, SW2018E, SX2122, TB12, US2004, US2014