Radius and Angle Charts

Radius and Angle ChartsRadius and Angle Charts combine 180 degree radius lines (with multiple magnification scale), 90 degree centerlines, and 30 and 45 degree lines in each quadrant. Every fifth line is bold and identified for direct reading.

Material Specifications

Glass

  • 14" (14.50" diameter, 0.12" thick)
  • 16" (16.38" diameter, 0.19" thick) - DISCONTINUED - Please use 14" plastic overlay as an alternative
  • 20" (20.25" diameter, 0.25" thick)
  • 30" (30.75" diameter, 0.25" thick)

Plastic

  • 14" (13.88" diameter, 0.05" thick)
  • 20" (19.75" diameter, 0.05" thick)
  • 30" (29.88" diameter, 0.05" thick)

Part Numbers

Glass

Mag.10x-20x-50x-100x31.25x-62.5x
Increment0.01"-0.005"-0.002"-0.001"0.004"-0.002"
14"152591 
16"DISCONTINUED - Please use 14" plastic overlay as an alternative
TB152191 
FC152291 
20"152791, 152792152781
30"152991 

Plastic

Mag.10x-20x-50x-100x31.25x-62.5x
Increment0.01"-0.005"-0.002"-0.001"0.004"-0.002"
14"152491152481
20"152691 
30"152891