Model numbers can be letters, numbers, or combinations. And usually are on the Name Plate of the product.
Black and Decker: on the top of Name Plate. Example: LDX120C, BDEJS600C, BDCR20B, 7698K-CA, BDEMS600, HG1300
Bosch: to the right of the Bosch logo. Example: DC970K-2, PS31-2A, 4100-09, PL1682, 11253VSR, RH540M, 11264EVS, RA1166, JS470E
DeWALT: at the top left of the name plate. Example: DWFP55130, DCD771C2, DCS391B, DCN692B, DCK296M2, DC820B, DW660, DWP611, DWARA100, DCV580
Hitachi: usually under the Hitachi logo. Example: C10FCE2, NT50AE2, P20ST 3, KM12VC, DB3DL2
Makita: usually to the right of the Makita logo. Example: MAC700, MAC2400, XPH012, JR3050T, AF505N, XJP03Z, 9557PBX1, XDT042, KP312, KP0800K, DFS452Z
Milwaukee: model number is displayed as CAT NO. and placed to the left of the Milwaukee logo. Example: 2691-22, 2720-20 M18, 2897-22 M18, 2663-20, 0880-20
Ryobi: near the Ryobi logo. Example:
SKIL: at the top of the Name Plate. Example: 5180-01, 1560-01, 1827, 7492-02, 4395-01, 5680-02
Black and Decker: on the top of Name Plate. Example: LDX120C, BDEJS600C, BDCR20B, 7698K-CA, BDEMS600, HG1300
Bosch: to the right of the Bosch logo. Example: DC970K-2, PS31-2A, 4100-09, PL1682, 11253VSR, RH540M, 11264EVS, RA1166, JS470E
DeWALT: at the top left of the name plate. Example: DWFP55130, DCD771C2, DCS391B, DCN692B, DCK296M2, DC820B, DW660, DWP611, DWARA100, DCV580
Hitachi: usually under the Hitachi logo. Example: C10FCE2, NT50AE2, P20ST 3, KM12VC, DB3DL2
Makita: usually to the right of the Makita logo. Example: MAC700, MAC2400, XPH012, JR3050T, AF505N, XJP03Z, 9557PBX1, XDT042, KP312, KP0800K, DFS452Z
Milwaukee: model number is displayed as CAT NO. and placed to the left of the Milwaukee logo. Example: 2691-22, 2720-20 M18, 2897-22 M18, 2663-20, 0880-20
Ryobi: near the Ryobi logo. Example:
SKIL: at the top of the Name Plate. Example: 5180-01, 1560-01, 1827, 7492-02, 4395-01, 5680-02