(144)#1 3/8"ACID BRUSH Why Pros Choose Mack Brushes MAC Great for motor and engine cleaning and repair Excellent for lead work, spreading solder and seam sealing General purpose flat face 100% stiff horse hair How to Use For motor and engine cleaning and repair, applying acid, paste, glue and solder in difficult to reach areas, lead work, spreading solder and seam sealing Specifications Technical specifications for ANDREW MACK 7-1 7 Series Acid Brush, #1, 6 in OAL, 3/8 in W, 100% Stiff Horsehair, Tin Handle Part No. 7-1 Product Line MAC MFR Model 7-1 Application For motor and engine cleaning and repair, applying acid, paste, glue and solder in difficult to reach areas, lead work, spreading solder and seam sealing Manufacturer Mack Brushes UPC 635909633969 Brand ANDREW MACK Handle Material Tin Brush Material 100% Stiff Horsehair Brush Size #1 Overall Length (in) 6 About Mack Brushes Mack Brushes is a trusted manufacturer of professional auto body and refinish products used by collision repair shops and restoration specialists across North America. Frequently Asked Questions How fast does autofxmart ship Mack Brushes MAC?Most in-stock orders for Mack Brushes MAC ship the same or next business day from our US warehouse. Expedited options are available at checkout. Freight-class items may require an additional 1–2 days for carrier pickup. Is this Mack Brushes product genuine?Yes. autofxmart is an authorized distributor of Mack Brushes products. Every unit is factory-fresh, sealed, and backed by the manufacturer's standard warranty. If you have a concern, contact [email protected] and we will make it right. What is the manufacturer part number (MPN) for Mack Brushes MAC?The MPN for Mack Brushes MAC is 7-1. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs. Why Buy from autofxmart Authorized distributor — authentic, factory-fresh stock. Fast US shipping — most orders ship within 1 business day. 30-day returns — buy with confidence. Pro-shop pricing — bulk discounts available on request. Expert support — questions? Email us at [email protected].