Note all Saw chain as far as pitch is concerned is measured is between 3 rivets and then divided by 2
McCULLOCH
GEAR DRIVE MODELS: 1-60, 1-61, 1-62, 1-63, 1-80, 1-81,
1-82, 1-85, 1-86, 55A, SUPER 55A, 35, 39, MAC 35, 33, 640, 840, 650

Original Equipment Chain Lengths:

Bar Length            Pitch and gauge 7/16 X 058G                                Pitch and gauge 9/16 X 058G

14"                             61AC3-45E
16"                                        51E
18"                                        56E                                                                             44E
20"                                        61E                                                                             48E
26"                                        73E                                                                             57E
33"                                        88E                                                                             69E
38"                                      101E                                                                             79E
44"                                      114E                                                                             90E
Plunge Bow                           75E                                                                             58E


.404" Pitch, ..058" Gauge.

16"                                   5IAC3-55E                                                               58AC-55E
18"                                  51AC3-60E                                                               58AC.60E
20"                                  51AC3-65E                                                               58AC.65E
16"                                  51AC3-78E                                                               58AC-78E
32"                                  51AC3-95E                                                               58AC-95E
38"                               51AC3 -108E                                                              58AC.108E
Plunge Bow                   51AC3 - 81E


DIRECT DRIVE MODELS:  1-10,2-10

Bar 3/8" Pitch, .058" Gauge
LengthType                      73D
16"                            60E
20"                            71E
24"                            82E



MODELS:47, 49, 3-25, 4-30, 4-30A, 73, 77 GEAR DRIVE
Original Equipment Chain Lengths:


                                                
7/16"                                             9/16"                                               ½"

14"                                      61AC3-51E                                                                                         9AC-44E
18"                                                   60E                                   5AC-47E                                               52E
24"                                                   74E                                          58E                                               64E
30"                                                   87E                                          69E                                               76E
36"                                                 100E                                          79E                                               88E
42"                                                 114E                                          90E                                             100E
15" Bow                                           74E                                          58E                                               64E
18" Bow                                           78E                                          61E                                               68E

Alternate Chain type 9AL


MODELS:1-91, 1-93, 940, GEAR DRIVE

                                                   1/2" Pitch.X 058 Gauge                       9/16"                                                  5/8"
                                                                                
19"                                            31C3 - 52E                                     5AC - 47E                                     17AC - 42E
25"                                                      64E                                              58E                                                52E
31"                                                      76E                                              69E                                                62E
37"                                                      88E                                              79E                                                71E
43"                                                    100E                                              90E                                                81E
51"                                                    117E                                             104E                                                94E
60"                                                    137E                                             122E                                              110E
15" Bow                                              64E                                               58E                                                52E
18" Bow                                              68E                                               61E                                                55E

Alternate chain type 9AL, 5AL, 17AL.


MODELS:5-49, 7-55, 99, 1225A Gear Drive.

     9/16"Pitch X  .074"Gauge                  ¾"X .074 Gauge

LengthType

20"6C -   64E                                               46E
30"6C -   75E                                               54E
40"6C -   93E                                               67E
50"6C - 110E                                               80E
60"6C - 128E                                               92E
70"6C - 144E                                             105E
20" Bow     6C -    75E                                               54E

The McCulloch Chain Cut length reference guide
Mac 335, 538, California 2000, Mac Cat 440 Mac 540

Bar Length      Drive Links             pitch                        gauge            Oregon chain type No

12"........................44............................3/8".........................050...............................91
14"                        49
16"                        54
18"                        60

Pro Mac 61

16"                       60                             3/8                            050                              72
18"                       64  
18"                       66 
20"                       70 

Pro Mac 46

15"                       64                             .325                            058                            21
16"                       66
18"                       72
20"                       78

Electric models and all Mini Models, Mini Mac, 100 series, PM300, 400, PM6, SP40, PM510, 515, Mac 3214, PM3505AV, PM3200, PM3205.


12"                        44                            3/8                           050                               91
14"                        49
16"                        54
18"                        60

Titan 50, 70, Timber Bear, Mac Cat 18av, Double Eagle80, 50. Mac 10 series PM55, SP60, CP55, 60, 70, 80, 81, 555, 655, 850, PM700, PM5700, PM8200.

16"                         60                           3/8                           050                                72
18"                         64
18"                         66
20"                         70
24"                         81

PM4300, PM4700, PM5000, PM5200, Titan 35, 40, 50.


15"                         64                          .325                       058                                   21
16"                         66
18"                         72
20"                         78

15"                        64                           .325                      050                                    95
16"                        66
18"                        72
20"                        78

PM 5600, 6800.

17"                        64                            3/8                           058                               73
20"                        72

SP 118, SP85

17"                         61                            .404                       063                                 27
20"                         72                            3/8                         058                                 73
GB's chain listing to Suit McCulloch

Mac 10 series, 1-10 to 10-10, 55, 555, Titan 50, 70, 560, 600, 610, 620, 650, 655, 700, 800, 805, 1000, Double Eagle 50 &80,
PM605, PM610, PM700, PM10-10, PM5700, PM6200, SP60, SP70, SP80, SP81, CP55, CP70, CP60, 3420, 3720, Eager Beaver 3.7, Timber Bear, Silver Eagle 3720.

16"                         60                           3/8                          050
20"                         70                        
24"                         81
28"                         92

Mini Mac series, Power Mac 6, Titan 7, Titan 35, 40, 41, 46, Wildcat, MacCat 16, Eager Beaver 10, 14, 16, 12e, 14e, 16e, 6a, 400, 440, 364, 380, 484, EMB, 10, 12, 12es, 14es, 16, E150, E200, E250, E300, PM3200, PM3205, PM3500, PM3505, PM3805, PM3800-16, PM5700-20, Mac 100, 18, 115, 120, 130, 140, 155, 160s, 165, 175, 310, 320, 330, 340, 35, 365, 375, 430, 435, 440, 445, 510, 2010, 2012, 2014, 2016, 2116, 2316, 2318, 3210, 3500, 3818, 3205, 3214, 3216, 3505, 4000, 730, 394, 494, 930, 935, EB2.1.

3/8 Low Profile.

12"                         44                           3/8                           050
14"                         49
16"                         54
18"                         60

4600, 4700, 4900, 5000.

16"                          66                        .325                            050
18"                          72
20"                          78
Oregon Chain Guide
Oregon chain types

1ac Chipper 3/4" x .120

2bc Chipper 3/4" x .090

3dac Chipper 3/4" x .074

3dL Chisel 3/4" x .074

3mac Chipper 3/4" x .074

3mL Chisel 3/4" x .074

4c Chipper 9/16 x .063

4L Chisel 9/16 x .063

5C Chipper 9/16 x .058

5L Chisel 9/16 x .058

6C Chipper 9/16 x .074

6L Chisel 9/16 x .074

7C Chipper 9/16 x .050

7L Chisel 9/16 x .050

8AC Chipper 9/16 x .074

9C Chipper 1/2" x .058

9L Chisel 1/2" x .058

9S Scratcher 1/2" x .058

10C Chipper 1/2" x .063

10L Chisel 1/2" x .063

10S Scratcher 1/2" x .063

11AC Chipper 3/4" x .120

14C Chipper 1/2" x .050

14S Scratcher 1/2" x .050

15C Chipper 5/8" x .074

15L Chisel 5/8" x .074

16C Chipper 5/8" x .063

17C Chipper 5/8" x .058

17L Chisel 5/8" x .058

19BC Chipper 1/2" x .050

20C Chipper 1/2" x .050

31C Chipper 1/2" x .058

Sabre chain code 1/2"

15,25 Chipper 1/2 x 058 /063