... ,100,200,500; 7) Vertical magnification:10,20,50,100,200,500,1000,2000; 8) Pick-up arm length:150mm; 9) Stylus ... length:22mm; 10) Stylus angle:11°; 11) Stylus radius ... :0.02-0.06N; 13) Stylus leading/trailling:≤77°(up)/≤88°(down). 10. Surface roughness measuring system: (1) Measuring range: 16 /160 ...