PL6464 = Double Wire Looper Pliers with 3 Steps (13-16-20mm) by Beadsmith

LARGE DOUBLE MULTI-STEP WIRE LOOPING PLIER
Perfect for shaping loops and rings consistently with its 3-step jaw. Though inexpensive, these Beadsmith brand pliers feature:

• Two jaws with 3 steps: 13, 16 and 20mm (1/2", 5/8" & 3/4")
• Stainless steel construction with cushion grips
• Overall length is 6"