The Replaceable Sleeve Stabilizer consists of a one piece body, on which a sleeve is simply made up by tongs or sleeve breaker, on the rig floor. It provides versatility and easy sleeve replacement to adapt to different formations and hole sizes. The Replaceable Sleeve Stabilizer is made of 4145 H modified alloy steel, fully heat treated to 285-341 Brinell hardness and 40 ft x lb minimum impact strength. Connections are gauged to API standards. And their Stress relief grooves are cold rolled. Connections are phosphatized or plated copper, coated and equipped with thread protectors. The Replaceable Sleeve Stabilizer is available in string or near-bit design. Central upset allows several center joint reconditioning.