String Book - Logan Oil Tools

caSing Bit SizeS anD cLearanceS
ApI CASIng
Casing Specifications Bit Size and Diametrical Clearances
Casing Casing Wt/Ft (lbs) Coupling Bit Size Clearance
O.D. (in) I.D. (in) w/Couplings O.D. (in) (in) Thousandths Nearest 64th
4-1/2 4.090 9.50 5.000 3-7/8 .215 7/32
4-1/2 4.000 11.60 5.000 3-7/8 .125 1/8
4-1/2 3.920 13.50 5.000 3-3/4 .170 11/64
5 4.560 11.50 5.563 4-1/4 .310 5/16
5 4.494 13.00 5.563 4-1/4 .244 1/4
5 4.408 15.00 5.563 4-1/4 .158 5/32
5 4.276 18.00 5.563 4-1/8 .151 5/32
5-1/2 5.044 13.00 6.050 4-3/4 .294 19/64
5-1/2 5.012 14.00 6.050 4-3/4 .262 17/64
5-1/2 4.950 15.50 6.050 4-3/4 .200 13/64
5-1/2 4.892 17.00 6.050 4-3/4 .142 9/64
5-1/2 4.778 20.00 6.050 4-1/8 .153 5/32
5-1/2 4.670 23.00 6.050 4-1/2 .170 11/64
6 5.524 15.00 6.625 5-3/8 .149 5/32
6 5.424 18.00 6.625 5-1/8 .299 19/64
6 5.352 20.00 6.625 5-1/8 .227 15/64
6 5.240 23.00 6.625 5-1/8 .115 7/64
6-5/8 6.135 17.00 7.390 6 .135 9/64
6-5/8 6.049 20.00 7.390 5-7/8 .174 11/64
6-5/8 5.921 24.00 7.390 5-5/8 .296 19/64
6-5/8 5.791 28.00 7.390 5-5/8 .166 11/64
6-5/8 5.675 32.00 7.390 5-3/8 .300 19/64
7 6.538 17.00 7.656 6-1/4 .288 9/32
7 6.456 20.00 7.656 6-1/4 .206 13/64
7 6.366 23.00 7.656 6-1/4 .116 7/64
7 6.276 26.00 7.656 6-1/8 .151 5/32
7 6.184 29.00 7.656 6 .184 3/16
7 6.094 32.00 7.656 6 .094 3/32
7 6.004 35.00 7.656 5-7/8 .129 1/8
7 5.920 38.00 7.656 5-3/4 .170 11/64
7-5/8 7.125 20.00 8.500 6-3/4 .375 3/8
7-5/8 7.025 24.00 8.500 6-3/4 .275 9/32
7-5/8 6.969 26.40 8.500 6-3/4 .219 7/32
7-5/8 6.875 29.70 8.500 6-3/4 .125 1/8
7-5/8 6.765 33.70 8.500 6-5/8 .140 9/64
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