A in. 3 - 1/2 3 - 7/8 4 4 - 1/8 4 - 1/2 4 - 3/8 5 4 - 5/8 5 - 1/2 4 - 5/8 B in. 5 5 - 1/8 5 - 1/4 5 - 3/8 5 - 1/2 5 - 1/2 5 - 5/8 5 - 3/4 5 - 7/8 6 6 6 - 1/8 6 - 1/4 6 - 3/8 6 - 1/2 6 - 1/2 6 - 5/8 6 - 3/4 6 - 7/8 7 6 - 3/4 6 - 7/8 7 7 - 1/8 7 - 1/4 7 - 3/8 7 - 1/2 C in. 4 - 1/8 4 - 1/2 4 - 53/64 5 - 7/64 5 - 3/8 Hughes H - 90 D in. E in. F in. 3 - 31/64 4 - 3/16 4 - 7/16 3 - 13/16 4 - 9/16 4 - 11/16 4 - 7/64 4 - 57/64 4 - 15/16 4 - 21/64 5 - 11/64 5 - 3/16 4 - 39/64 5 - 7/16 5 - 3/16 G in. 2 - 5/8 - 2 - 3/4 2 - 1/2 - 2 - 3/4 2 - 2 - 5/8 2 - 2 - 1/4 2 - 2 - 1/8 2 - 7/8 - 3 2 - 1/2 - 2 - 7/8 2 - 1/4 - 2 - 7/8 2 - 2 - 3/4 2 - 2 - 1/2 3 - 3 - 1/4 2 - 3/4 - 3 2 - 1/2 - 3 2 - 3 2 - 2 - 3/4 2 - 7/8 - 3 - 1/4 2 - 1/2 - 3 2 - 1/4 - 3 2 - 1/4 - 2 - 3/4 2 - 1/2 3 - 1/8 - 3 - 3/8 3 - 3 - 1/4 2 - 3/4 - 3 - 1/4 2 - 1/4 - 3 - 1/4 2 - 1/4 - 3 2 - 1/4 - 2 - 3/4 2 - 1/4 - 2 - 1/2 H (TPI) 3 - 1/2 3 - 1/2 3 - 1/2 3 - 1/2 3 - 1/2 Baker Oil Tools J in. K (TPF) 3 - 15/16 2 4 - 5/16 2 4 - 41/64 2 4 - 59/64 2 6 - 3/8 5 - 3/16 2 Baker Oil Tools Size 6 - 5/8 7 7 - 5/8 8 - 5/8

A in. 4 - 7/8 5 - 3/8 6 6 - 1/2 B in. 7 - 5/8 7 - 3/4 7 - 7/8 8 8 - 1/8 8 - 1/4 8 - 1/4 8 - 3/8 8 - 1/2 8 - 5/8 8 - 3/4 9 9 - 1/2 9 - 5/8 9 - 3/4 9 - 7/8 10 10 - 1/4 10 - 3/4 11 11 - 1/4 11 - 1/2 Hughes H - 90 (Continued) C in. D in. E in. F in. 6 5 - 3/16 6 - 1/16 5 - 11/16 6 - 1/2 5 - 5/32 7 - 1/8 5 - 15/16 7 - 25/64 5 - 57/64 8 6 - 9/16 8 - 17/64 6 - 41/64 9 - 3/8 7 - 1/16 G in. 3 - 3/8 - 3 - 5/8 3 - 1/4 - 3 - 1/2 3 - 3 - 1/2 2 - 1/2 - 3 - 1/2 2 - 1/2 - 3 - 1/4 2 - 1/2 - 3 3 - 1/2 - 3 - 3/4 2 - 3/4 - 3 - 3/4 2 - 3/4 - 3 - 1/2 2 - 3/4 - 3 - 1/4 2 - 3/4 - 3 3 - 1/2 - 4 3 - 4 3 - 3 - 3/4 3 - 3 - 1/4 3 - 1/2 - 4 3 - 4 3 - 3 - 1/4 H (TPI) J in. 3 - 1/2 5 - 13/16 3 - 1/2 6 - 3/8 3 - 1/2 7 - 17/64 3 - 1/2 8 - 9/64 Page 1 - 11 K (TPF) 2 3 3 3 Page 1 - 12 Size 2 - 3/8 2 - 7/8 3 - 1/2 4 4 - 1/2 Size 2 - 3/8 A in. 2 - 7/8 2 - 7/8 3 - 3/8 3 - 3/8 3 - 7/8 B in. 2 - 7/8 3 - 3/8 4 - 1/8 4 - 5/8 5 C in. 2 - 7/16 2 - 7/8 3 - 25/64 3 - 13/16 4 - 1/64 Obsolete Connection Hughes Slim Hole D in. 1 - 31/32 2 - 25/64 2 - 53/64 3 - 1/4 3 - 3/8 E in. 2 - 1/2 2 - 15/16 3 - 29/64 3 - 7/8 4 - 5/64

Notes F in. 3-1/4 3-1/4 3-3/4 3-3/4 4-1/4 G in. 1-13/16 1-3/4 2-1/8 2-7/16 2-11/16 H (TPI) 4 4 4 4 4 Baker Oil Tools K (TPF) 2 2 2 2 2 Baker Oil Tools Size A in. 2-3/8 2-3/4 2-7/8 2-7/8 3-1/2 3-1/8 B in. 3-1/8 3-1/4 3-3/4 3-7/8 4 4-1/8 4-1/4 4-5/8 4-3/4 4-7/8 5 5-1/8 C in. 2.725 3.196 3.835 Hughes Slimline H 90 D in. E in. F in. G in. 2.439 2-49/64 3-1/16 1-1/2 2-1/8 2-1/4 2.897 3-15/64 3-3/8 2 3.509 3-7/8 3-3/8 1-3/4 2 1-1/2 1-3/4 2-3/8 2-3/4 2-1/2 2-3/4 2-5/8 2-3/8 2-1/2 2 2-3/8 1-3/4 2-1/8 H (TPI) 3 3 3 J in. K (TPF) 2-43/64 1-1/4 3-5/32 1-1/4 3-25/32 1-1/4 L in. 3-1/16 3-3/16 3-5/8 3-23/32 3-13/16 3-29/32 4 4-7/16 4-17/32 4-5/8 4-23/32 4-13/16 Page 1-13 M in. N in. 2-1/4 2-5/8 2-45/64 3-3/32 3-11/32 3-47/64 Page 1-14 Size 2-7/8 3-1/2 4-1/2 5 A in. 3-7/8 3-3/8 4-3/8 4-1/2 B in. 4-1/4 4-3/4 6-1/4 6-3/8 C in. 3-21/64 3-13/16 4-53/64 5-1/4

Hughes Xtra Hole D in. 2-11/16 3-1/4 4-7/64 4-1/2 E in. 3-23/64 3-7/8 4-29/32 5-5/16 F in. 4-1/2 3-15/16 4-15/16 4-7/8 G in. 1-7/8 2-7/16 3-1/4 3-3/4 H (TPI) 4 4 4 4 J in. 3-15/64 Baker Oil Tools K (TPF) 2 2 2 2 Baker Oil Tools Hughes External Flush Size 2-3/8 2-7/8 3-1/2 4-1/2 A in. 2-3/8 2-5/8 3-1/4 3-3/8 B in. 2-1/2 3 3-5/8 3-11/16 4-11/16 4-17/32 C in. 2-7/64 2-1/2 3 3-13/16 E in. 1-23/32 2-1/16(cid:27) 3-1/4 2-17/32 2-1/16 D in. F in. 3 2-29/64 3-1/32 4 3-1/4 3-7/8 4-1/4 G in. 1 1-1/16 1-1/2 2-3/16 H (TPI) 6 6 4 4 J in. 2-1/64 Size 2-3/8 3-1/2 4-1/2 Note Threaded part same as or interchanges with 2-3/8" HOMCO (External Flush) Little Inch Threaded part same as or interchanges with 3-1/2" FH Reed External Flush Threaded part same as or interchanges with 3-1/2" Hughes Extra Hole, 3-1/2" Reed Extra Hole, 4" Hughes Slim Hole, 4-1/2" FH Reed External Flush (cid:132) Straight Counterbore K (TPF) 2 2 2 2 Page 1-15 Page 1-16