Saw Frame & Size 4/0 Forme d'Art Saw Blades For Ring Sizing & Jewelry Repair Grobet Swiss Saw Frame. This is a new adjustable saw frame. This saw frame is for the discriminating jeweler who demands high quality tools. The saw frame is a revolutionary design and is precision made of the highest quality spring steel with a non glare finish. The comfortable handle and light weight design provides a luxurious grip with enhanced productivity. The ergonomic handle reduces fatigue and provides a greater dexterity. Patented blade lock design eases blade insertion and maintains perfect alignment. Set screws can be used on either the right or left side of the frame depending on your preference. The throat depth measures approximately 3" (76 mm). The handle measures approximately 4" (101 mm) long. It measures approximately 10 3/4" (273 mm) long Size 4/0Saw Blades. This is a new set of 144 saw blades. This is a good inexpensive blade for novices and hobbyists. These blades are the best jeweler tested blades for all metals, wood, plastic and more. They are less likely to break and wander when cutting for a straight cut. These blades are size 4/0. Each measures approximately 5 1/4" (133 mm) long.