Williams Probe Williams Probe Sign in to save to your list PW7 Single-ended, color-coded probe. Ergonomic, Satin Steel™ Colours™ handle. Williams. SKU Handle PW7 #7 Satin Steel™ Colours™ PW6 #6 Satin Steel™ PW #30 Round PW8 #8 ResinEight™™ Where to Buy Ask a specialist