API standard AISI 4145H Mod forged straight stabilizer for drilling

Product Specification Material:AISI 4145H, AISI 4145H Mod, AISI 4340, AISI 4140-4142 and Non-magnetic. Size:Up to 36” Type: Stabilizer forging/blank, Reamer Forging Integral Blade Stabilizer Integral spiral stabilizer Interchangeable sleeve stabilizer Straight blade stabilize Sleeve replaceable stabilizer All of the connections arestrictly in accordance withAPI Standard, which have stress relief groove and are cold rolled. The flank of thread is phosphatized or plated copper,