Functions.
In addition to measuring the basic functions of millimeter and inch sizes, it also integrates relevant information for PCB design such as angle gauges, devices, IC pin spacing tables, Resistor and capacitor chip package, the commonly used diameter reference drill, line width size reference
We printed this information on FR-4 gold-plated PCBs.
R-4 gold-plated PCB, high-end atmosphere, high hardness, wear resistance
 
Positive Specifications:
 
The measurement length: 25cm
Measuring length: 10 inches
Commonly used IC package: 1.NAND_FLASH_TSOP48  2.QFP7X7-64   3.PLCC-20  4.SOP16  5.TSSOP24  6.SSOP8  7.SOP8
Commonly used CHIP component: 1.TO252-3  2.SOT223  3.SOT89-3  4.SOT23-6 5.SOT23-3  6.SOD123  7.SOD323  8.1210  9.3528  10.1206  11.0805 12. 0603  13. 0402  14.TO92
Common bore diameter reference dimensions (unit: mm): 3.0  2.5  2.0  1.5  1.0  0.8  0.5  0.4
Slot for hanging straightedge
 
Back Specifications:
 
Commonly used line width reference (unit: mm)
Angle measurement: 180 degrees
Device, IC pin spacing table: 0.5mm, 0.65mm, 0.8mm, 1.0mm, 1.25mm, 2.54mm;
Common bore diameter reference dimensions (unit: mm): 3.0  2.5  2.0  1.5  1.0  0.8  0.5  0.4
 
Package included:
 
1 x 25cm Multifunctional PCB Ruler