Mack brush flat lettering brushes jet stroke series-1962 full set, sizes 1/8 - 1-1/2 inch , is an excellent overall flat lettering brush.  It is normally used for larger lettering and production lettering. It can also be used as a fill-in brush and an outliner for large letters. The long hair length allows the brush to carry a lot of paint. This brush is suitable for most surfaces. It is a mixture of pure squirrel and black ox. It has a flat ferrule and the hair comes in graduated lengths. Mack Brush series-1962 series 8 inch to 1-1/2 inch, Length Out varies by size, soft Black Flat, pure squirrel and black ox, Seamless Nickel Ferrule, Long Dark Brown Handle and One Stroke Lettering. 

Set includes: 
1 each
1/8 Inch , 1/4 Inch, 3/8 Inch, 1/2 Inch, 5/8 Inch, 3/4 Inch, 1 Inch, 1-1/4 Inch, 1-1/2 Inch

length out
1/8 inch length out 1-3/6", 1/4 inch length out 1-3/8", 3/8 inch length out 1-1/2, 1/2 inch length out 1-5/8", 3/4 inch 1-3/4", 1 inch 1-15/16"