The grades of 6 Machinery stocks are on the rise this week on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

This week, Snap-on Incorporated (SNA) pushes up from a B to a A rating. Snap-on Incorporated conceives, manufactures, and markets of tools, diagnostics, equipment, software, and service solutions for professional clients. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of SNA stock.

Toro Company (TTC) boosts its rating from a B to a A this week. Toro Company is a designer, manufacturer and marketer of professional turf maintenance equipment and services, turf and agricultural micro-irrigation systems, landscaping equipment and snow removal products. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of TTC stock.

AGCO Corporation (AGCO) is seeing ratings go up from a C last week to a B this week. AGCO Corporation manufactures and distributes agricultural equipment. The company also gets A’s in earnings surprise and free cash flow. For more information, get Portfolio Grader’s complete analysis of AGCO stock.

Federal Signal Corporation’s (FSS) ratings are looking better this week, moving up to a B from last week’s C. Federal Signal Corporation manufactures and supplies safety, signaling, and communications equipment. The company also gets A’s in return on equity and free cash flow. For more information, get Portfolio Grader’s complete analysis of FSS stock.

The rating of Blue Bird Corporation (BLBD) moves up this week, rising from a C to a B. For more information, get Portfolio Grader’s complete analysis of BLBD stock.

This is a strong week for Gencor Industries, Inc. (GENC). The company’s rating climbs to B from the previous week’s C. Gencor Industries, Inc. manufactures asphalt plants, soil remediation plants, combustion systems and screening equipment for the construction industry. For more information, get Portfolio Grader’s complete analysis of GENC stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.