JY casing scraper can work as non-rotating fixed type casing scraper,and also can work as a rotating type casing scraper.When it used as fixed casing scraper,as long as increase adjustable pad locates in top sub to make it not rotate,otherwise decrease adjustable pad,it will beused asrotating casing scraper.It is mainly used in cleaning cement,sandy,residual bullets,scratches,paraffin,burs and other attachments from inner wall of casing,in order to keep inner wall of casing clean.
| Model | Tool OD | Tool ID | Casing Sizo | Casing Weight | OAL | Connection |
| mm (inch) | mm (inch) | inch | Ibf/ft | mm (ft) | ||
| JY4-1/2 | 85.7(3-3/8) | 16(5/8) | 4-1/2 | 9.5~15.1 | 1050(3.4) | 2-3/8REG B×P |
| JY5 | 85.7(3-3/8) | 19 (3/4) | 5 | 11.5～24.1 | 1050(3.4) | 2-3/8REG B×P |
| JY5-1/2 | 100(3-15/16) | 19 (3/4) | 5-1/2 | 14～23 | 1070(3.5) | 2-7/8REG B×P |
| JY7 | 121(4-3/4) | 31.8(1-1/4) | 7 | 20～42.7 | 1160(3.8) | NC38 Bxp |
| JY9-5/8 | 165.1(6-1/2) | 71.4(2-13/16) | 9-5/8 | 32.3～75.6 | 1240(4.1) | NC50B×P |
| JY13-3/8 | 203.2(8) | 71.4 (2-13/16) | 13-3/8 | 48~72 | 1562(5.1) | 6-5/8REG B×P |
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