UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D. C. 20549

FORM 10-Q / A

Amendment No. 1

(Mark One)

For the Quarterly Period Ended June 30, 2014

Commission File Number: 001-36453

Superior Drilling Products, Inc.

(Exact name of registrant as specified in its charter)

1583 South 1700 East

Vernal, Utah 84078

(Address of principal executive offices)

435-789-0594

(Issuer’s telephone number)

(Former name, address, and fiscal year, if changed since last report)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934, during the preceding 12 months (or such shorter period that the Registrant was required to file such report(s)), and (2) has been subject to such filing requirements for the past 90 days.

Yes x No ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Yes ¨ No ¨

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definition of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer ¨    Accelerated filer ¨    Non-accelerated filer ¨     Smaller reporting company x

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ¨ No x

There were 17,291,646 shares of common stock, $0.001 par value, issued and outstanding as of September 12, 2014.

We are filing this Amendment No. 1 on Form 10-Q/A (the “Amendment”) to amend our Quarterly Report on Form 10-Q for the period ended June 30, 2014, originally filed with the Securities and Exchange Commission on August 14, 2014. The purpose of this Amendment is to furnish Exhibit 101 to our Form 10-Q as required by Rule 405 of Regulation S-T. Exhibit 101 to this report contains the Extensible Business Reporting Language (XBRL) Interactive Data File for the financial statements and notes included in Part I, Item 1 of the Form 10-Q. As permitted by Rule 405(a)(2)(ii) of Regulation S-T, Exhibit 101 is required to be furnished by amendment within 30 days of the original filing date of the Form 10-Q.

Users of this data are advised that, pursuant to Rule 406T of Regulation S-T, these interactive data files are deemed not filed or part of a registration statement or prospectus for purposes of sections 11 or 12 of the Securities Act of 1933, are deemed not filed for purposes of Section 18 of the Securities and Exchange Act of 1934, and otherwise are not subject to liability under those sections. No other changes have been made to the originally filed Form 10-Q other than those described above. This Amendment No. 1 does not reflect subsequent events occurring after the original filing date of the Form 10-Q or modify or update in any way disclosures made in the Form 10-Q.

Item 6. Exhibits

The exhibits listed below are filed as part of this report:

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.