Junk Sub is normally run just above the drill bit or milling tool, with a cup for catching objects too heavy to be completely circulated out of the hole. It is also run above a scraper, operators can get quicker, cleaner scraping jobs.

Type	Hole Size Range	Max. O.D.	Sub O.D.	I.D.	Connection
	(mm/inch)	(mm/inch)	(mm/inch)	(mm/inch)	API
SLB127	152.4~161.9(6~6-3/9)	127(5)	114.3(4-1/2)	38.1(1-1/2)	3-1/2REG
SLB168	190.5~215.9(7-1/2~8-1/2)	168(6-5/8)	146(5-3/4)	57.2(2-1/4)	4-1/2REG
SLB175	219~244.5(8-5/8~9-5/8)	175(6-57/64)	146(5-3/4)	57.2(2-1/4)	4-1/2REG
SLB245	292.1~330.2(11-1/2~13)	244.5(9-5/8)	203.2(8)	71.4(2-13/16)	6-5/8REG
SLB330	374.7~444.5(14-3/4~17-1/2)	330(13)	241.3(9-1/2)	76.2(3)	7-5/8REG
When ordering or requesting quotation, if size out of above specification, pls. specify clearly.