ST Series

The ST SERIESof probe tips, available from GGB Industries, Inc., are precision crafted from a 0.020 inch (0.51mm) diameter solid tungsten shaft that is electrochemically sharpened to a specified point. These durable, 1.5 inch long solid tungsten shaft probe tips are for use in most standard micropositioners when probing an integrated circuit, pad, or line. A variety of radius point sizes from 0.5 microns to 10 microns are available to accommodate any probing need.

The ST Series tips are quite strong and can be used to scratch or punch through multiple layers of passivation while offering reliable probing at both an affordable price and the convenience of immediate delivery from our well-stocked facility. A nickel-plated option is also available allowing the user to solder to the shaft of the tip. When ordering the nickel-plated option, please add the suffix “NP” to the end of the part number. Custom sizes are available as well. Please contact our office if you would like to receive some samples.

ST Series Solid Tungsten Probe Tips
Solid Tungsten
Shaft Diameter
Point Radius
(in microns)
ST-20-0.5 0.020" (0.51mm) <0.5 micron
ST-20-1.0 0.020" (0.51mm) <1.0 micron
ST-20-2.0 0.020" (0.51mm) <2.0 microns
ST-20-5.0 0.020" (0.51mm) <5.0 microns
ST-20-10.0 0.020" (0.51mm) <10.0 microns
The ST Series is a 0.020″ (0.51mm) diameter solid tungsten shaft sharpened to a precise point.