Type 4 - Forward Swing Arm Heads

Type 4 Gas Line Cleaners



Type 4 Gas Line Cleaners from Airetool

Type 4 Forward Swing Arm Heads


Diagram of Type 4 Gas Line Cleaners from Airetool

Diagram showing the parts of Type 4 Heads


Spring Retractible Type 4 Gas Line Cleaners from Airetool

Type 4 SRA Spring Retracting Arm heads


Diagram of Spring Retractible Type 4 Gas Line Cleaners from Airetool

Diagram showing the parts of Type 4 SRA Heads

1-1/2" — 4-3/4" I.D. for Straight Tubes, Bent Tubes, and Drill Pipe


  Models

Type 4 - Forward Swing Arm Heads

Forward swing arm heads, components and (ordering numbers)

Recommended spare parts: cone cutters and cutter pins, cutter arms and arm pins.

Drag your finger across the table to scroll

Head Number Tube I.D. Closed Expands To Spider Figure Long Arm (qty.) Short Arm (qty.) Head Cpl. Cpl. Tap Long Cutter Pin (qty.) Short Cutter Pin (qty.) Arm Pin (qty.) Pin Lock (qty.) Cone Cutter (qty.) Star Cutter (qty.) No. of Arms
1840 (4050700) 1-3/4" 1-1/2" 2-1/8" 1841 (1049800) 1 1842 (1) (1049900) 1842 A (1) (1050000)   5/8" N.C. 1834 (1) (1049600) 1834 A (1) (1049700) 1845 (2) (1050100PT) 1846 (1050202) 337 (2) (1025700) 338 (3) (1025905) 2
1840 B (4050800) 2-1/4" 1-1/2" 2-1/8" 1841 (1049800) 2 1842 (1) (1049900) 1842 A (1) (1050000) MM 66 (1279200) 5/8" N.C. 1834 (1) (1049600) 1834 A (1) (1049700) 1845 (2) (1050100PT) 1846 (1050202) 337 (2) (1025700) 338 (3) (1025905) 2
2340 (4051400) 2" 1-7/8" 3" 2341 (1054000) 1 1832 (1) (1049400PT) 1832 A (1) (1049500PT)   5/8" N.C. 1834 (1) (1049600) 1834 A (1) (1049700) 2345 (2) (1054300) 2346 (1054400) 337 (2) (1025700) 338 (3) (1025905) 2
4440 (4055200) 2" 1-7/8" 3" 2341 (1054000) 2 1832 (1) (1049400PT) 1832 A (1) (1049500PT) MM 66 (1279200) 5/8" N.C. 1834 (1) (1049600) 1834 A (1) (1049700) 2345 (2) (1054300) 2346 (1054400) 337 (2) (1025700) 338 (3) (1025905) 2
4470 (4055400) 2-5/16" 2" 3-7/8" 4471 (1082200) 2 4472 (3) (1082300)   MM 66 (1279200) 5/8" N.C. 4474 (3) (1082400)   4475 (3) (1082500) 4476 (1082600) C 19 (3) (1214100)   3
4470 A (4055500) 2-5/16" 2" 3-7/8" 4471 (1082200) 1 4472 (3) (1082300)   2383 B (1055600) 3/4" N.C. 4474 (3) (1082400)   4475 (3) (1082500) 4476 (1082600) C 19 (3) (1214100)   3
3370 (4054400) 2-1/4" 2-1/4" 3-5/8" 3371 (1075500) 2 3372 (3) (1075600) 3551 (4095400)   3/4" N.C. 3374 (3) (1075700)   3375 (3) (1075800) 3376 (1075900) 637 (3) (1028800)   3
3370 A (4054500) 2-3/4" 2-1/4" 3-5/8" 3371 (1075500) 1 3372 (3) (1075600)   2043 7/8 (1052600) 7/8" N.C. 3374 (3) (1075700)   3375 (3) (1075800) 3376 (1075900) 637 (3) (1028800)   3
3270 (4054000) 3" 2-1/2" 4" 3271 (1071700) 2 3472 (2) (1076100) 3272 (2) (1071800) 3551 (4095400) 7/8" N.C. 3474 (2) (1076200) 3274 (2) (1071900) 3275 (2) (1072000) 3276 (1072200) 1047 (2) (1041700) 2837 (2) (1064600) 4
3270 A 7/8 (4054100) 3" 2-1/2" 4" 3271 (1071700) 1 3472 (2) (1076100) 3272 (2) (1071800) 2043 7/8 (1052600) 7/8" N.C. 3474 (2) (1076200) 3274 (2) (1071900) 3275 (2) (1072000) 3276 (1072200) 1047 (2) (1041700) 2837 (2) (1064600) 4
970 (4049900) 3-1/4" 2-3/4" 4-7/8" 971 (1039000) 1 972 (2) (1039100) 972 A (2) (1039200) 543 7/8 (1027300) 7/8" N.C. 974 (2) (1039300) 974 A (2) (1039400) 975 (4) (1039500) 976 (4) (1039600) 637 (4) (1028800)   4
970 B (4050000) 3-1/4" 2-3/4" 4-7/8" 971 (1039000) 2 972 (2) (1039100) 972 A (2) (1039200) 551 (4094000) 7/8" N.C. 974 (2) (1039300) 974 A (2) (1039400) 975 (4) (1039500) 976 (4) (1039600) 637 (4) (1028800)   4
770 (4048700) 3-1/2" 3" 4-3/4" 771 (1033000) 1 772 (2) (1033200) 772 A (2) (1033300) 873 A (1035400) 7/8" N.C. 774 (2) (1033500PT) 774 A (2) (1033600) 775 (4) (1033800) 776 (1033900) 747 (4) (1031700)   4
770 B (4048800) 3-1/2" 3" 4-3/4" 771 (1033000) 2 772 (2) (1033200) 772 A (2) (1033300) 1151 (4094400) 7/8" N.C. 774 (2) (1033500PT) 774 A (2) (1033600) 775 (4) (1033800) 776 (1033900) 747 (4) (1031700)   4
870 (4049300) 3-1/4 - 4" 3-3/8" 5-1/8" 871 1 772 (2) (1033200) 772 A (2) (1033300) 873 A 7/8" N.C. 774 (2) (1033500PT) 774 A (2) (1033600) 875 (4) 876 747 (4) (1031700)   4
870 B (4049400) 3-1/4 - 4" 3-3/8" 5-1/8" 871 2 772 (2) (1033200) 772 A (2) (1033300) 1151 (4094400) 7/8" N.C. 774 (2) (1033500PT) 774 A (2) (1033600) 875 (4) 876 747 (4) (1031700)   4
770 S A (4049000) 4-3/4" 2-3/4" 5-1/2" 771 S (1033100) 1 772 S (4) (1033400)   543 7/8 (1027300) 7/8" N.C. 774 S (4) (1033700)   775 (4) (1033800) 776 S (4) (1034000) 747 (4) (1031700)   4
770 S 4-3/4" 2-3/4" 5-1/2" 771 S (1033100) 2 772 S (4) (1033400)   551 (4094000) 7/8" N.C. 774 S (4) (1033700)   775 (4) (1033800) 776 S (4) (1034000) 747 (4) (1031700)   4

Type 4 - SRA Spring Retracting Arm Heads

Forward swing arm heads, components and (ordering numbers)

Recommended spare parts: cone cutters and cutter pins, cutter arms and arm pins.


  • Developed specifically for Drill Pipe applications to protect box end threads
  • The "SRA" arms are held closed until air is applied which allows for easy insertion into the box end of drill pipe, especially when used with automated cleaning equipment

Drag your finger across the table to scroll

Head Number Tube I.D. Closed Expands To Spider Fig. Long Arm (qty.) Short Arm (qty.) Head Coupling Coupling Tap
SRA 1470 9/16 (4105691PT) 1-1/2" 1-3/8" 2-3/8" 1471 (1717450PT) 1 1472 (3) (1717451PT)   SRA 1473 9/16 (1717452PT) 9/16"
SRA 1870 5/8 (4105684PT) 2" 1-7/8" 2-7/8" 1871 (1050300PT) 1 4472 (3) (1082300)   SRA 1873 (1717447PT) 5/8"
SRA 4470 3/4 (4105679) 2-5/16" 2" 3-1/2" 4471 (1082200) 1 4472 (3) (1082300)   SRA 4473 3/4 (1717435) 3/4"
SRA 3370 7/8 (4105678) 2-3/4" 2-1/4" 3-7/8" 3371 (1075500) 1 3372 (3) (1075600)   SRA 3373 7/8 (1717432) 7/8"
SRA 3270 7/8 (4105681) 3" 2-1/2" 4" 3271 (1071700) 1 3472 (2) (1076100) 3272 (2) (1071800) SRA 3373 7/8 (1717432) 7/8"
SRA 3270 UJK (4105694PT) 3" 2-1/2" 4" 3271 (1071700) 2 3472 (2) (1076100) 3272 (2) (1071800) SRA 3273U (1717456PT) 7/8"
SRA 970 7/8 (4105680) 3-1/4" 2-3/4" 4-1/4" 971 (1039000) 1 972 (2) (1039100) 972 A (2) (1039200) SRA 973 7/8 (1717442) 7/8"
SRA 770 7/8 (4105677PT) 3-1/2" 3" 4-7/8" 771 (1033000) 1 772 (2) (1033200) 772 A (2) (1033300) SRA 773 7/8 (1717429) 7/8"
SRA 5770 7/8 (4105683PT) 4-3/4" 2-3/4" 5-1/2" 771 (1033000) 1 772 S (4) (1033400)   SRA 773 7/8 (1717429) 7/8"

Drag your finger across the table to scroll

Head Number Long Cutter Pin (qty.) Short Cutter Pin (qty.) Arm Pin (qty.) Pin Lock (qty.) Cone Cutter (qty.) Star Cutter (qty.) Spring Universal Joint No. of Arms
SRA 1470 9/16 (4105691PT) 1474 (3) (1717453PT)   1475 (3) (1717454PT) SRA 1476 (1717455PT) 2947 (3) (1066000)   SRA 1479 (1717449PT)   3
SRA 1870 5/8 (4105684PT) 4474 (3) (1082400)   4475 (3) (1082500) SRA 1876 (1717448PT) C 19 (3) (1214100)   SRA 1879 (1717448PT)   3
SRA 4470 3/4 (4105679) 4474 (3) (1082400)   4475 (3) (1082500) SRA 4476 (1717434) C 19 (3) (1214100)   SRA 4479 (1717436)   3
SRA 3370 7/8 (4105678) 3374 (3) (1075700)   3375 (3) (1075800) SRA 3376 (1717431) 637 (3) (1028800)   SRA 3379 (171433)   3
SRA 3270 7/8 (4105681) 3474 (2) (1076200) 3274 (2) (1071900) 3275 (4) (1072000) SRA 3276 (1717444) 1047 (2) (1041700) 2837 (2) (1064600) SRA 3379 (171433)   4
SRA 3270 UJK (4105694PT) 3474 (2) (1076200) 3274 (2) (1071900) 3275 (4) (1072000) SRA 3276 (1717444) 1047 (2) (1041700) 2837 (2) (1064600) SRA 3379 (171433) 651 KNF (4094150PT) 4
SRA 970 7/8 (4105680) 974 (2) (1039300) 974 A (2) (1039400) 975 (4) (1039500) SRA 976 (1717441) 637 (4) (1028800)   SRA 3379 (171433)   4
SRA 770 7/8 (4105677PT) 774 (2) (1033500) 774 A (2) (1033600) 775 (4) (1033800) SRA 776 (1717428) 747 (4) (1031700)   SRA 779 (1717430)   4
SRA 5770 7/8 (4105683PT) 774 S (4) (1033700)   775 (4) (1033800) SRA 776 (1717428) 747 (4) (1031700)   SRA 779 (1717430)   4

  Features

Features currently unavailable.

  Dimensions

Dimensions currently unavailable.

  Contact mdi

Please fill out the form below and your personal mdi product expert will email you your quote. The more information that you provide the quicker we can send you a quote. Sending an incomplete quote request could mean that we have to contact you for necessary information before sending your quote. And know that our knowledgeable sales staff is standing by to help you with your order and with any questions.

In a rush? Use our Quick Contact form to get in touch with us fast!

If you have about five minutes to spare, though, you can save time on the quoting process by filling out the form below.






Please include your contact information so that we may reply to your request. Your contact information is private and will not be sold to any third party or used negatively in any way.







mdi does not advertise prices online. The cost of products is subject to change over time. In order to extend to you the best price that we can offer, we prefer to create written and emailed quotes which reflect any discounts or promotions currently available. Some products can be quoted over the phone, and expediting quotes and orders is always available per request.

See our Terms and Conditions for more information about the mdi sales process.


Call us any time Monday through Friday 7:30 AM to 5:30 PM ET.

Phone: (813) 241-4900 | Toll Free: 800-761-4298
Fax: (813) 571-0422 | Email or Fill Out the Form Above