Check the listing for details. 2pcs Multi functional engineering ruler 25cm PCB design PCB ruler PCB protractor. Color: Black, Condition: New. Listed at 9.49 USD. Description:The multi-function PCB ruler also integrates the relevant information of PCB design, such as angle meter, device, IC pin spacing table, etc.Electronic enthusiasts need a measuring tool in the design process, which can set all necessary functions.In addition to the basic functions of measuring millimeter and inch dimensions, the relevant information of PCB design is integrated, such as angle meter, device, IC pin spacing table, resistance and capacitor chip package, common diameter reference drill, line width dimension referenceWe print this information on the FR-4 gold-plated PCB.R-4 gilded PCB, high-end atmosphere, high hardness, good wear resistancePositive specifications:Measuring length: 25cmMeasurement length: 10 inCommon IC package: 1.nand_ FLASH_ TSOP48 2.QFP7X7-64 3.PLCC-20 4.SOP16 5.TSSOP24 6.SSOP8 7.SOP8Common chip components: 1.to252-3 2.sot223.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.to92Reference dimension of through hole diameter (in mm): 3.02.52.01.51.0.80.50.4Return to specification:Common line width reference (in mm)Angle measurement: 180 degreesEquipment, IC pin spacing table: 0.5mm, 0.65mm, 0.8mm, 1.0mm, 1.25mm, 2.54mm;Reference dimension of through hole diameter (in mm): 3.0 2.5 2.0 1.5 1.0 0.8 0.5 0.4 Quantity: 2pcs