Adjustable Saw Frame For Ring Sizing & Jewelry Repair. This is a new adjustable saw frame. This saw frame can be used with piercing, flat and spiral saw blades. It has a plastic handle to reduce fatigue and provides a greater dexterity. It has solid clamps to tightly hold blades. The thumb screws making adjusting the saw easy. This saw frame is used for cutting all metals, plastic and wood. The throat depth measures approximately 4" (101 mm). The handle measures approximately 4" (101 mm) long. It measures approximately 12 3/4" (323 mm) long.