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The ILS Bit Release is used in operations for drilling out cement, cast iron
bridge plugs and other drillable tools and thereby leaving the drill string
intact as the production string. The spring loaded check valve prevents
tubing back flow during drillout. After drillout a ball is dropped through
the drill string and seats in the piston. Pressure applied to the drill string
forces the drill bit to release and fall to the bottom of the hole.
Bit Release Specification Sheet
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