UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

(Rule 13d-101)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT

TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO

§ 240.13d-2(a)

(Amendment No. 7)1

Superior Drilling Products, Inc.

(Name of Issuer)

Common Stock, par value $0.001 per share

(Title of Class of Securities)

868153107

(CUSIP Number)

JEFFREY E. EBERWEIN

LONE STAR VALUE MANAGEMENT, LLC

53 Forest Avenue, 1st Floor

Old Greenwich, Connecticut 06870

(203) 489-9500

STEVE WOLOSKY, ESQ.

OLSHAN FROME WOLOSKY LLP

1325 Avenue of the Americas

New York, New York 10019

(212) 451-2300

(Name, Address and Telephone Number of Person

Authorized to Receive Notices and Communications)

October 26, 2016

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box ¨.

Note:  Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits.  See § 240.13d-7 for other parties to whom copies are to be sent.

_______________

1              The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

CUSIP NO. 868153107

1	NAME OF REPORTING PERSON LONE STAR VALUE INVESTORS, LP
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) o   (b) x
3	SEC USE ONLY
4	SOURCE OF FUNDS
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)		¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER - 0 -
	8	SHARED VOTING POWER - 0 -
	9	SOLE DISPOSITIVE POWER - 0 -
	10	SHARED DISPOSITIVE POWER - 0 -
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON - 0 -
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES		o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0%
14	TYPE OF REPORTING PERSON PN

2

CUSIP NO. 868153107

1	NAME OF REPORTING PERSON LONE STAR VALUE CO-INVEST I, LP
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) o   (b) x
3	SEC USE ONLY
4	SOURCE OF FUNDS WC
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)		¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER 300,000
	8	SHARED VOTING POWER - 0 -
	9	SOLE DISPOSITIVE POWER 300,000
	10	SHARED DISPOSITIVE POWER - 0 -
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 300,000
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES		o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 1.3%
14	TYPE OF REPORTING PERSON PN

3

CUSIP NO. 868153107

1	NAME OF REPORTING PERSON LONE STAR VALUE INVESTORS GP, LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) o   (b) x
3	SEC USE ONLY
4	SOURCE OF FUNDS AF
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)		¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER 300,000
	8	SHARED VOTING POWER - 0 -
	9	SOLE DISPOSITIVE POWER 300,000
	10	SHARED DISPOSITIVE POWER - 0 -
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 300,000
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES		o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 1.3%
14	TYPE OF REPORTING PERSON OO

4

CUSIP NO. 868153107

1	NAME OF REPORTING PERSON LONE STAR VALUE MANAGEMENT, LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) o   (b) x
3	SEC USE ONLY
4	SOURCE OF FUNDS AF, OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)		¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION CONNECTICUT
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER 826,700
	8	SHARED VOTING POWER - 0 -
	9	SOLE DISPOSITIVE POWER 826,700
	10	SHARED DISPOSITIVE POWER - 0 -
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 826,700
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES		o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 3.5%
14	TYPE OF REPORTING PERSON OO

5

CUSIP NO. 868153107

1	NAME OF REPORTING PERSON JEFFREY E. EBERWEIN
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) o   (b) x
3	SEC USE ONLY
4	SOURCE OF FUNDS AF
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)		¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION USA
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER 826,700
	8	SHARED VOTING POWER -0-
	9	SOLE DISPOSITIVE POWER 826,700
	10	SHARED DISPOSITIVE POWER -0-
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 826,700
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES		o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 3.5%
14	TYPE OF REPORTING PERSON IN

6

CUSIP NO. 868153107

The following constitutes Amendment No. 7 to the Schedule 13D filed by the undersigned (“Amendment No. 7”).  This Amendment No. 7 amends the Schedule 13D as specifically set forth herein.

Item 3. Source and Amount of Funds or Other Consideration.

Item 3 is hereby amended and restated to read as follows:

The Shares purchased by Lone Star Co-Invest I and held in Separately Managed Account I were purchased with working capital (which may, at any given time, include margin loans made by brokerage firms in the ordinary course of business) in open market purchases, except as otherwise noted, as set forth in Schedule A, which is incorporated by reference herein.  The aggregate purchase price of the 526,700 Shares held in Separately Managed Account I is approximately $807,458, including brokerage commissions.  The aggregate purchase price of the 300,000 Shares held in Lone Star Value Co-Invest I is approximately $296,685, including brokerage commissions.

Item 5. Interest in Securities of the Issuer.

Item 5 is hereby amended and restated to read as follows:

The aggregate percentage of Shares reported owned by each person named herein is based upon 23,961,631 Shares outstanding as of October 19, 2016, which is the total number of Shares reported outstanding in the Issuer’s Registration Statement on Form S-1 filed with the Securities and Exchange Commission on October 21, 2016.

A. Lone Star Value Investors

(a) As of the close of business on October 27, 2016, Lone Star Value Investors did not beneficially own any Shares.

Percentage: 0%

(b) 1. Sole power to vote or direct vote: 0

2. Shared power to vote or direct vote: 0

3. Sole power to dispose or direct the disposition: 0

4. Shared power to dispose or direct the disposition: 0

(c) The transactions in the Shares by Lone Star Value Investors since the filing of Amendment No. 6 to the Schedule 13D are set forth in Schedule A and are incorporated herein by reference.

B. Lone Star Value Co-Invest I

(a) As of the close of business on October 27, 2016, Lone Star Value Co-Invest I beneficially owned 300,000 Shares.

Percentage: Approximately 1.3%

(b) 1. Sole power to vote or direct vote: 300,000

2. Shared power to vote or direct vote: 0

3. Sole power to dispose or direct the disposition: 300,000

4. Shared power to dispose or direct the disposition: 0

7

CUSIP NO. 868153107

(c) The transactions in the Shares by Lone Star Value Co-Invest I since the filing of Amendment No. 6 to the Schedule 13D are set forth in Schedule A and are incorporated herein by reference.

C. Lone Star Value GP

(a) Lone Star Value GP, as the general partner of Lone Star Value Investors and Lone Star Value Co-Invest I, may be deemed the beneficial owner of the 300,000 Shares owned by Lone Star Value Co-Invest I.

Percentage: Approximately 1.3%

(b) 1. Sole power to vote or direct vote: 300,000

2. Shared power to vote or direct vote: 0

3. Sole power to dispose or direct the disposition: 300,000

4. Shared power to dispose or direct the disposition: 0

(c) Lone Star Value GP has not entered into any transactions in the Shares since the filing of Amendment No. 6 to the Schedule 13D. The transactions in the Shares on behalf of Lone Star Value Investors and Lone Star Value Co-Invest I since the filing of Amendment No. 6 to the Schedule 13D are set forth in Schedule A and are incorporated herein by reference.

D. Lone Star Value Management

(a) As of the close of business on October 27, 526,700 Shares were held in Separately Managed Account I. Lone Star Value Management, as the investment manager of Lone Star Value Investors, Lone Star Value Co-Invest I and Separately Managed Account I, may be deemed the beneficial owner of the (i) 300,000 Shares owned by Lone Star Value Co-Invest I and (ii) 526,700 Shares held in Separately Managed Account I.

Percentage: Approximately 3.5%

(b) 1. Sole power to vote or direct vote: 826,700

2. Shared power to vote or direct vote: 0

3. Sole power to dispose or direct the disposition: 826,700

4. Shared power to dispose or direct the disposition: 0

(c) Lone Star Value Management has not entered into any transactions in the Shares since the filing of Amendment No. 6 to the Schedule 13D. The transactions in the Shares on behalf of Lone Star Value Investors and Lone Star Value Co-Invest I since the filing of Amendment No. 6 to the Schedule 13D are set forth in Schedule A and are incorporated herein by reference.

E. Mr. Eberwein

(a) Mr. Eberwein, as the manager of Lone Star Value GP and sole member of Lone Star Value Management, may be deemed the beneficial owner of the (i) 300,000 Shares owned by Lone Star Value Co-Invest I and (ii) 526,700 Shares held in Separately Managed Account I.

Percentage: Approximately 3.5%

8

CUSIP NO. 868153107

(b) 1. Sole power to vote or direct vote: 826,700

2. Shared power to vote or direct vote: 0

3. Sole power to dispose or direct the disposition: 826,700

4. Shared power to dispose or direct the disposition: 0

(c) Mr. Eberwein has not entered into any transactions in the Shares since the filing of Amendment No. 6 to the Schedule 13D. The transactions in the Shares on behalf of Lone Star Value Investors and Lone Star Value Co-Invest I since the filing of Amendment No. 6 to the Schedule 13D are set forth in Schedule A and are incorporated herein by reference.

(d)           No person other than the Reporting Persons is known to have the right to receive, or the power to direct the receipt of dividends from, or proceeds from the sale of, the Shares.

(e)           As of October 26, 2016, the Reporting Persons ceased to be the beneficial owners of more than 5% of the Shares of the Issuer.

Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.

Item 6 is hereby amended to add the following:

On a voluntary basis, the Reporting Persons hereby disclose that Lone Star Value Investors has purchased from a counter-party a cash-settled barrier option consisting of a basket of securities of different issuers (the “Barrier Option”). The Barrier Option cannot be exercised to obtain the various underlying issuer securities and Lone Star Value Investors does not have the power to vote or direct the vote of the underlying securities contained in the Barrier Option. Lone Star Value Investors has sold an aggregate of 1,725,889 Shares to the Barrier Option (the “Subject Shares”). Taking into account the Subject Shares, the Reporting Persons have economic exposure to an aggregate of 2,552,589 Shares (representing approximately 10.7% of the outstanding Shares on the same basis). The Reporting Persons disclaim beneficial ownership of the Subject Shares.

9

CUSIP NO. 868153107

SIGNATURES

After reasonable inquiry and to the best of his knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.

Dated:  October 28, 2016

Lone Star Value Investors, LP
By:	Lone Star Value Investors GP, LLC General Partner
By:	/s/ Jeffrey E. Eberwein
	Name:	Jeffrey E. Eberwein
	Title:	Manager

Lone Star Value Co-Invest I, LP
By:	Lone Star Value Investors GP, LLC General Partner
By:	/s/ Jeffrey E. Eberwein
	Name:	Jeffrey E. Eberwein
	Title:	Manager
Lone Star Value Investors GP, LLC
By:	/s/ Jeffrey E. Eberwein
	Name:	Jeffrey E. Eberwein
	Title:	Manager

Lone Star Value Management, LLC
By:	/s/ Jeffrey E. Eberwein
	Name:	Jeffrey E. Eberwein
	Title:	Sole Member

/s/ Jeffrey E. Eberwein

Jeffrey E. Eberwein

10

CUSIP NO. 868153107

SCHEDULE A

Transactions in the Securities of the Issuer Since the Filing of Amendment No. 6 to the Schedule 13D

Shares of Common Stock Purchased/(Sold) Price Per Share ($) Date of Purchase / Sale

LONE STAR VALUE INVESTORS, LP

(1,725,889)* 0.8396 10/26/2016

LONE STAR VALUE CO-INVEST I, LP

50,000 0.8737# 10/21/2016

* Sold to the Barrier Option.

 

# Price reported is a weighted average price. The Shares were purchased in multiple transactions ranging from $0.8300 to $0.9700. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Shares purchased at each separate price within the range set forth in this footnote. For clarity, 100 of such Shares were purchased at a price of $0.8300.