with Blue Book
A Speed Square (rafter square, rafter angle square, triangle square) is an American, triangular-shaped, carpenters’ layout out tool which combines some of the most common functions of a try square, and framing square into one. It is used to make basic measurements and mark lines on dimensional lumber, and may be used as a saw guide for making short 45 and 90 degree cuts. Swanson is the inventor of this iconic tool!
Standard Equipment:
S0101 Speed Square
T0108 Big 12 Speed Square
Blue Book of Instructions
Features:
5 tools in one – try square, miter square, protractor, line scriber, saw guide.
Has Diamond feature that makes layout work and seat cuts on common rafters.
1/4″ spaced notches to facilitate scribing lines.
Black gradations for easier reading.
Matte finish to prevent glare.
Heavy gauge aluminum alloy.
