Lowell Corporation’s Cast Iron Ratchet Arms

For original equipment manufacturers and plant operation.

Model 12 is made of cast ductile iron. This durable and rugged ratchet arm is perfect for heavy-duty applications. Featuring reversing head control, enclosed replaceable gears, standard and special openings, and slim profile with bolt-thru design.

ImageOpeningPart NumberHandle Length (A)Overall Length (B)Overall Width (C)Handle Thickness (D)MaterialMeasurement Systemhf:att:pa_socket-openinghf:att:pa_a-dimensionhf:att:pa_overall-lengthhf:att:pa_overall-widthhf:att:pa_d-dimensionhf:att:pa_materialhf:att:pa_measurement-system
Model 12 Ratchet Arm Square Opening
3/8" Sq12901-912068"9"1-15/16"7/8"Cast IronStandard3-8-sq891-15-167-8cast-ironstandard
Model 12 Ratchet Arm Square Opening
1/2" Sq12901-912088"9"1-15/16"7/8"Cast IronStandard1-2-sq891-15-167-8cast-ironstandard
Model 12 Ratchet Arm Square Opening
9/16" Sq12901-912098"9"1-15/16"7/8"Cast IronStandard9-16-sq891-15-167-8cast-ironstandard
Model 12 Ratchet Arm Square Opening
5/8" Sq12901-912108"9"1-15/16"7/8"Cast IronStandard5-8-sq-2891-15-167-8cast-ironstandard
Model 12 Ratchet Arm Square Opening
10 mm Sq12901-M12108"9"1-15/16"7/8"Cast IronMetric10-mm-sq891-15-167-8cast-ironmetric
Model 12 Ratchet Arm Square Opening
13 mm Sq12901-M12138"9"1-15/16"7/8"Cast IronMetric13-mm-sq891-15-167-8cast-ironmetric
Model 12 Ratchet Arm Square Opening
14 mm Sq12901-M12148"9"1-15/16"7/8"Cast IronMetric14-mm-sq891-15-167-8cast-ironmetric
Model 12 Ratchet Arm Square Opening
16 mm Sq12901-M12168"9"1-15/16"7/8"Cast IronMetric16-mm-sq891-15-167-8cast-ironmetric
Model 12 Ratchet Arm Hex Opening
1/2" Hex12901-913088"9"1-15/16"7/8"Cast IronStandard1-2-hex891-15-167-8cast-ironstandard
Model 12 Ratchet Arm Hex Opening
9/16" Hex12901-913098"9"1-15/16"7/8"Cast IronStandard9-16-hex891-15-167-8cast-ironstandard
Model 12 Ratchet Arm Hex Opening
5/8" Hex12901-913108"9"1-15/16"7/8"Cast IronStandard5-8-hex891-15-167-8cast-ironstandard
Model 12 Ratchet Arm Hex Opening
3/4" Hex12901-913128"9"1-15/16"7/8"Cast IronStandard3-4-hex891-15-167-8cast-ironstandard
Model 12 Ratchet Arm Hex Opening
13 mm Hex12901-M13138"9"1-15/16"7/8"Cast IronMetric13-mm-hex891-15-167-8cast-ironmetric
Model 12 Ratchet Arm Hex Opening
14 mm Hex12901-M13148"9"1-15/16"7/8"Cast IronMetric14-mm-hex891-15-167-8cast-ironmetric
Model 12 Ratchet Arm Hex Opening
16 mm Hex12901-M13168"9"1-15/16"7/8"Cast IronMetric16-mm-hex891-15-167-8cast-ironmetric
Model 12 Ratchet Arm Hex Opening
17 mm Hex12901-M13178"9"1-15/16"7/8"Cast IronMetric17-mm-hex891-15-167-8cast-ironmetric
Model 12 Ratchet Arm Hex Opening
19 mm Hex12901-M13198"9"1-15/16"7/8"Cast IronMetric19-mm-hex891-15-167-8cast-ironmetric
Model 12 Ratchet Arm Bore Opening
1/2" Bore12901-911088"9"1-15/16"7/8"Cast IronStandard1-2-bore891-15-167-8cast-ironstandard
Model 12 Ratchet Arm Bore Opening
5/8" Bore12901-911108"9"1-15/16"7/8"Cast IronStandard5-8-bore891-15-167-8cast-ironstandard
Model 12 Ratchet Arm Bore Opening
3/4" Bore12901-911128"9"1-15/16"7/8"Cast IronStandard3-4-bore891-15-167-8cast-ironstandard
Model 12 Ratchet Arm Bore Opening
13 mm Bore12901-M11138"9"1-15/16"7/8"Cast IronMetric13-mm-bore891-15-167-8cast-ironmetric
Model 12 Ratchet Arm Bore Opening
16 mm Bore12901-M11168"9"1-15/16"7/8"Cast IronMetric16-mm-bore891-15-167-8cast-ironmetric
Model 12 Ratchet Arm Bore Opening
19 mm Bore12901-M11198"9"1-15/16"7/8"Cast IronMetric19-mm-bore891-15-167-8cast-ironmetric