PER CURIAM.

A petition has been filed in this Court seeking writs of certiorari and supersedeas, and a writ of mandamus if required, to review an interlocutory order in this case which is now pending in the United States District Court for the Western District of Tennessee, Westerns Division, under the style N. E. Dacus, et al. v. Barry M. Carter, et al. The Issuance of extraordinary writs by this Court is sought under the All Writs Statute, 28 U.S.C. § 1651. !

The complaint was filed July 18, 1963. On August 8, 1963, petitioner filed its answer and cross-claim against other defendants. The record shows that various pretrial depositions have been undertaken and a number of motions have been made. Under date of October 24, 1963, the District Judge, the Honorable Bailey Brown, entered an order disposing of ten motions. Petitioner concedes that this order is not a final appealable decision, but is an interlocutory decree from! which an appeal will not lie. Petitioner contends that if it is required to comply with the order of the District Court of which it complains, and await review of a final decision, “it will have been severely injured and irreparably damaged in the interim.” Relief is sought from the order of the District Judge in: (1) directing the attorney for petitioner to show authority to act in that capacity; (2) overruling petitioner’s written motions to expunge and strike from the record the motion of another defendant .to take certain pretrial depositions, and to vacate the order of the District Court, commanding certain witnesses to appeal* and give their depositions; (3) overruling petitioner’s written motion that his-attorney be compensated as a witness. *426 as provided by Rule 30(g) (1), Federal Rules of Civil Procedure; (4) requiring the attorney for petitioner to produce petitioner’s books and records and “work product” for examination; (5) requiring petitioner’s attorney to submit to further pretrial examination; and (6) overruling petitioner’s motion to require certain other parties to appear and give pretrial depositions.

It is well settled that the supplementary relief powers granted to Courts of Appeals by the All Writs Statute are meant to be used only in exceptional cases where there is a clear abuse of discretion or usurpation of judicial power. Bankers Life & Casualty Co. v. Holland, 346 U.S. 379, 382, 74 S.Ct. 145, 98 L.Ed. 106; Roche v. Evaporated Milk Association, 319 U.S. 21, 26, 63 S.Ct. 938, 87 L.Ed. 1185; Filmore v. Kalbfleisch, 286 F.2d 171 (C.A.6).

Extraordinary writs will not be used as substitutes for appeal. Hartford Accident & Indemnity Co. v. Interstate Equipment Corp., 176 F.2d 419 (C.A.3) ; Hoffa v. Gray, 323 F.2d 178 (C.A.6) and cases therein cited. As said by Chief Justice Stone in United States Alkali Exp. Ass’n v. United States, 325 U.S. 196, 202-293, 65 S.Ct. 1120, 1125, 89 L.Ed. 1554:

“It is evident that hardship is imposed on parties who are compelled to await the correction of an alleged error at an interlocutory stage by an appeal from a final judgment. But such hardship does not necessarily justify resort to certiorari or other of the extraordinary writs as a means of review. In such cases appellate courts are reluctant to interfere with decisions of lower courts, even on jurisdictional questions, which they are competent to decide and which are reviewable in the regular course of appeal. [Citing cases.] The writs may not be used as a substitute for an authorized appeal; and where, as here, the statutory scheme permits appellate review of interlocutory orders only on appeal from the final judgment, review by certiorari or other extraordinary writ is not permissible in the face of the plain indication of the legislative purpose to avoid piecemeal reviews.”

We find no abuse of discretion or usurpation of judicial power on the part of the District Court in this case.

The petition for writs of certiorari, supersedeas and mandamus is denied.