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Home > Drilling Tools & Equipment
Fixed Diameter Hole Opener
Fixed Diameter Hole Opener

Fixed Diameter Hole Opener

INQUIRY PDF Format
Description
Features & Benefits
Fixed Diameter Hole Opener is a general hole enlarging tool. It is used to enlarge hole during drilling and connected with a bit on front end to drill pilot hole and enlarge hole simultaneously.
The cutters can replace according to the different hardness of formation.

Specification
Type Hole open dia.(in) Qty of cutter Min. pilot hole(in) Fishing neck dia.(in) I.D(in) Top Conn. (pin) Bottom Conn.(box) Overall length(in)
SR 311 12 1/4 3 8 1/2 8 1 1/2 6 5/8REG 6 5/8REG 55
SR 406 16 3 10 9 1/2 2 1/4 7 5/8REG 7 5/8REG 59
SR 444 17 1/2 3 10 9 1/2 2 1/4 7 5/8REG 7 5/8REG 59
SR 559 22 3 12 3/4 9 1/2 2 1/3 7 5/8REG 7 5/8REG 69
SR 584 23 3 12 3/4 8 3 6 5/8REG 6 5/8REG 69
SR 610 24 3 14 10 3 7 5/8REG 7 5/8REG 69
SR 660 26 3 17 1/2 10 3 7 5/8REG 7 5/8REG 69
SR 4-914 36 4 26 10 3 1/2 7 5/8REG 7 5/8REG 87
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