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drill rods, 1.Inner and outer tube of core barrel, 2.high core recovery efficiency, 3.for different rock formation - details see: https://www.machineto.com/drill-rods-10317207

1.Drill rod:BQ, NQ, HQ , PQ , NT, HT

casing tube:BW, NW, HW, HWT

2.Core barrel:BQ NQ NQ2 NQ3 HQ HQ3 PQ PQ3 head assembly and parts

3.AQ-PQ, T2, T6 etc.Diamond core bit, reaming shell & shoe bit (syntheyic and surface-set, PDC)

4.Drill tool:hoisting plug, water swivel, overshot, outer tube & inner tube wrench, foot clamp,etc.

5.Dimensions of drill pipe:

Dimensions of Drill pipe
sizes	nominal weight	calculate the weight of flat-side		D/OD		grade	thickness		thickening of the form
		Lb/ft	Kg/m	in	mm		in	mm
2 3/8	6.65	6.26	9.32	2.375	60.3	E,X,G,S	0.280	7.11	external thickening
2 7/8	10.40	9.72	14.48	2.875	73.0	E,X,G,S	0.362	9.19	inside or outside the thickening thickening
3 1/2	9.50	8.81	13.12	3.500	88.9	E	0.254	6.45	inside or outside the thickening thickening
3 1/2	13.30	12.31	18.34	3.500	88.9	E,X,G,S	0.368	9.35	inside or outside the thickening thickening
3 1/2	15.50	14.63	21.79	3.500	88.9	E	0.449	11.40	inside or outside the thickening thickening
3 1/2	15.50	14.63	21.79	3.500	88.9	X,G,S	0.449	11.40	within and outside the outer thickening or thickening
4	14.00	12.93	19.26	4.000	101.6	E,X,G,S	0.330	8.38	inside or outside the thickening thickening
4 1/2	13.75	12.24	18.23	4.500	114.3	E	0.271	6.88	inside or outside the thickening thickening
4 1/2	16.60	14.98	22.31	4.500	114.3	E,X,G,S	0.337	8.56	within and outside the outer thickening or thickening
4 1/2	20.00	18.69	27.84	4.500	114.3	E,X,G,S	0.430	10.92	within and outside the outer thickening or thickening
5	16.25	14.87	22.15	5.000	127.0	X,G,S	0.296	7.52	in thickening
5	19.50	17.93	26.71	5.000	127.0	E	0.362	9.19	inside and outside the thickening
5	19.50	17.93	26.71	5.000	127.0	X,G,S	0.362	9.19	within and outside the outer thickening or thickening
5	25.60	24.03	35.79	5.000	127.0	E	0.500	12.70	inside and outside the thickening
5	25.60	24.03	35.79	5.000	127.0	X,G,S	0.500	12.70	within and outside the outer thickening or thickening