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Casing Dimensions & Bit Clearance

Casing								Bit
Outside diameter		Weight		Inside diameter		Drift		Size		Clearance	Weight
inch	mm	lb/ft	kg/m	inch	mm	inch	mm	inch	mm	Clearance	lbs	kg
4 1/2	114.3	9.5	14.13752	4.090	103.886	3.965	100.711	3 7/8	98.425	0.090	10	4.536
4 1/2	114.3	11.6	17.262656	4.000	101.6	3.875	98.425	3 7/8	98.425	0.000	10	4.536
4 1/2	114.3	13.5	20.09016	3.920	99.568	3.795	96.393	3 3/4	95.25	0.045	10	4.536
4 1/2	114.3	15.1	22.471216	3.826	97.1804	3.701	94.0054	3 5/8	92.075	0.076	10	4.536
5	127	11.5	17.11384	4.560	115.824	4.435	112.649	4 1/4	107.95	0.185	11	4.9896
5	127	13	19.34608	4.494	114.1476	4.369	110.9726	4 1/4	107.95	0.119	11	4.9896
5	127	15	22.3224	4.408	111.9632	4.283	108.7882	4 1/4	107.95	0.033	11	4.9896
5	127	18	26.78688	4.276	108.6104	4.151	105.4354	4 1/8	104.775	0.026	11	4.9896
5 1/2	139.7	13	19.34608	5.044	128.1176	4.919	124.9426	4 3/4	120.65	0.169	16	7.2576
5 1/2	139.7	14	20.83424	5.012	127.3048	4.887	124.1298	4 3/4	120.65	0.137	16	7.2576
5 1/2	139.7	15.5	23.06648	4.950	125.73	4.825	122.555	4 3/4	120.65	0.075	16	7.2576
5 1/2	139.7	17	25.29872	4.892	124.2568	4.767	121.0818	4 3/4	120.65	0.017	16	7.2576
5 1/2	139.7	20	29.7632	4.778	121.3612	4.653	118.1862	4 5/8	117.475	0.028	16	7.2576
5 1/2	139.7	23	34.22768	4.670	118.618	4.545	115.443	4 1/2	114.3	0.045	12	5.4432
6	152.4	15	22.3224	5.524	140.3096	5.399	137.1346	5 3/8	136.525	0.024	25	11.34
6	152.4	18	26.78688	5.425	137.795	5.299	134.5946	5 1/8	130.175	0.174	25	11.34
6	152.4	20	29.7632	5.352	135.9408	5.277	134.0358	5 1/8	130.175	0.102	25	11.34
6	152.4	23	34.22768	5.240	133.096	5.115	129.921	4 7/8	123.825	0.240	16	7.2576
6	152.4	26	38.69216	5.132	130.3528	5.007	127.1778	4 7/8	123.825	0.132	16	7.2576
6 5/8	168.275	17	25.29872	6.135	155.829	6.010	152.654	6	152.4	0.010	28	12.7008
6 5/8	168.275	20	29.7632	6.049	153.6446	5.924	150.4696	5 7/8	149.225	0.049	26	11.7936
6 5/8	168.275	24	35.71584	5.921	150.3934	5.976	151.7904	5 3/4	146.05	0.046	25	11.34
6 5/8	168.275	28	41.66848	5.791	147.0914	5.666	143.9164	5 5/8	142.875	0.041	25	11.34
6 5/8	168.275	32	47.62112	5.675	144.145	5.550	140.97	5 3/8	136.525	0.175	25	11.34
7	177.8	17	25.29872	6.538	166.0652	6.413	162.8902	6 3/8	161.925	0.038	29	13.1544
7	177.8	20	29.7632	6.456	163.9824	6.331	160.8074	6 1/4	158.75	0.081	28	12.7008
7	177.8	23	34.22768	6.366	161.6964	6.241	158.5214	6 1/8	155.575	0.116	28	12.7008
7	177.8	26	38.69216	6.276	159.4104	6.151	156.2354	6 1/8	155.575	0.026	28	12.7008
7	177.8	29	43.15664	6.184	157.0736	6.059	153.8986	6	152.4	0.059	26	11.7936
7	177.8	32	47.62112	6.094	154.7876	5.969	151.6126	5 7/8	149.225	0.094	26	11.7936
7	177.8	35	52.0856	6.004	152.5016	5.879	149.3266	5 7/8	149.225	0.004	25	11.34
7	177.8	38	56.55008	5.920	150.368	5.795	147.193	5 3/4	146.05	0.045	37	16.7832
7 5/8	193.675	20	29.7632	7.125	180.975	7.000	177.8	6 3/4	171.45	0.250	37	16.7832
7 5/8	193.675	24	35.71584	7.025	178.435	6.900	175.26	6 3/4	171.45	0.150	37	16.7832
7 5/8	193.675	26.4	39.287424	6.969	177.0126	6.844	173.8376	6 3/4	171.45	0.094	37	16.7832
7 5/8	193.675	29.7	44.198352	6.875	174.625	6.750	171.45	6 3/4	171.45	0.000	32	14.5152
7 5/8	193.675	33.7	50.150992	6.765	171.831	6.640	168.656	6 5/8	168.275	0.015	29	13.1544
7 5/8	193.675	39	58.03824	6.625	168.275	6.500	165.1	6 3/8	161.925	0.125	60	27.216
8 5/8	219.075	24	35.71584	8.097	205.6638	7.972	202.4888	7 7/8	200.025	0.097	60	27.216
8 5/8	219.075	28	41.66848	8.017	203.6318	7.982	202.7428	7 7/8	200.025	0.017	58	26.3088
8 5/8	219.075	32	47.62112	7.921	201.1934	7.796	198.0184	7 3/4	196.85	0.046	58	26.3088
8 5/8	219.075	36	53.57376	7.825	198.755	7.700	195.58	7 5/8	193.675	0.075	43	19.5048
8 5/8	219.075	40	59.5264	7.725	196.215	7.600	193.04	7 3/8	187.325	0.225	43	19.5048
8 5/8	219.075	44	65.47904	7.625	193.675	7.500	190.5	7 3/8	187.325	0.125	43	19.5048
8 5/8	219.075	49	72.91984	7.511	190.7794	7.386	187.6044	7 3/8	187.325	0.011	43	19.5048
9 5/8	244.475	29.3	43.603088	9.063	230.2002	8.907	226.2378	8 3/4	222.25	0.157	74	33.5664
9 5/8	244.475	32.3	48.067568	9.001	228.6254	8.845	224.663	8 3/4	222.25	0.095	74	33.5664
9 5/8	244.475	36	53.57376	8.921	226.5934	8.765	222.631	8 3/4	222.25	0.015	74	33.5664
9 5/8	244.475	40	59.5264	8.835	224.409	8.697	220.9038	8 5/8	219.075	0.072	73	33.1128
9 5/8	244.475	43.5	64.73496	8.755	222.377	8.599	218.4146	8 1/2	215.9	0.099	70	31.752
9 5/8	244.475	47	69.94352	8.681	220.4974	8.525	216.535	8 1/2	215.9	0.025	70	31.752
9 5/8	244.475	53.5	79.61656	8.535	216.789	8.379	212.8266	8 3/8	212.725	0.004	74	33.5664
10 3/4	273.05	32.75	48.73724	10.192	258.8768	10.036	254.9144	9 7/8	250.825	0.161	118	53.5248
10 3/4	273.05	40.5	60.27048	10.050	255.27	9.894	251.3076	9 7/8	250.825	0.019	118	53.5248
10 3/4	273.05	45.5	67.71128	9.950	252.73	9.794	248.7676	9 3/4	247.65	0.044	112	50.8032
10 3/4	273.05	51	75.89616	9.850	250.19	9.694	246.2276	9 5/8	244.475	0.069	112	50.8032
10 3/4	273.05	55.5	82.59288	9.760	247.904	9.604	243.9416	9	228.6	0.604	75	34.02
10 3/4	273.05	60.7	90.331312	9.660	245.364	9.504	241.4016	9	228.6	0.504	75	34.02
10 3/4	273.05	65.7	97.772112	9.560	242.824	9.404	238.8616	9	228.6	0.404	75	34.02
11 3/4	298.45	38	56.55008	11.150	283.21	10.994	279.2476	10 5/8	269.875	0.369	140	63.504
11 3/4	298.45	42	62.50272	11.084	281.5336	10.928	277.5712	10 5/8	269.875	0.303	140	63.504
11 3/4	298.45	47	69.94352	11.000	279.4	10.844	275.4376	10 5/8	269.875	0.219	140	63.504
11 3/4	298.45	54	80.36064	10.880	276.352	10.724	272.3896	10 5/8	269.875	0.099	140	63.504
11 3/4	298.45	60	89.2896	10.772	273.6088	10.616	269.6464	9 7/8	250.825	0.741	118	53.5248
13 3/8	339.725	48	71.43168	12.715	322.961	12.559	318.9986	12 1/4	311.15	0.309	181	82.1016
13 3/8	339.725	54.5	81.10472	12.615	320.421	12.459	316.4586	12 1/4	311.15	0.209	181	82.1016
13 3/8	339.725	61	90.77776	12.515	317.881	12.359	313.9186	12 1/4	311.15	0.109	181	82.1016
13 3/8	339.725	68	101.19488	12.415	315.341	12.259	311.3786	12 1/4	311.15	0.009	181	82.1016
13 3/8	339.725	72	107.14752	12.374	314.2996	12.191	309.6514	10	254	2.191	135	61.236
16	406.4	55	81.8488	15.375	390.525	15.188	385.7752	15	381	0.188	325	147.42
16	406.4	65	96.7304	12.250	311.15	15.062	382.5748	15	381	0.062	325	147.42
16	406.4	75	111.612	15.125	384.175	14.938	379.4252	14 3/4	374.65	0.188	325	147.42
16	406.4	84	125.00544	15.010	381.254	14.823	376.5042	14 3/4	374.65	0.073	325	147.42
20	508	94	139.88704	19.124	485.7496	18.936	480.9744	17 1/2	444.5	1.436	560	254.016