Best Seller | 2 pc Zoro Select Oil Hard Drill Rod O1 #16 0.175 In O1 Tool Steel Rod Material Tool Steel Material Grade O1 Overall Length 36 in Heat Treatable Yes Heat Treatment Oil Hardened Mechanical Finish Precision Ground Outside Diameter 11/64 in Outside Diameter Tolerance +/-0.0005 in Yield Strength 55 000 psi... more | | $25.49 FREE shipping go to store |