Knew Concepts Jewelers Precision Hand Saws with Knob Tension

These are the original Knew Concepts Saw Frames, also called Fret Saws, with a screw tension.  Knew Concepts calls this their economy model.  It provides extremely precise blade tensioning simply by turning the knurled tension nut at the top of the frame. Saw frame flex in the basic jewelers saw frame can contribute to blade breakage. With the advanced design of the Knew Concept Sawframe, saw frame flex is minimized, reducing sawblade breakage and maximizing sawblade life. The Knew Concepts Jewelers Precision Saw Frame is designed for maximum rigidity and comfort.    Choose from 2 Different Throat Depths:  149.653  3" (75mm) 149.655  5" (125mm) Even the smallest detail of the Knew Concept Sawframe has been thought out:   The knurled gold tone blade holders on either end are for making quick and easy sawblade changes The lightweight aluminum frame makes the Knew Concept Sawframe the lightest on the market, an important factor for jewelers who spend a lot of time with a sa