The new heavy duty range of jewellers saws from Knew Concepts applies the braced design and thicker material used in the 6.5" blade Knew Concepts coping saw, to the 5" blade jewellers saw range.
By sacrificing a tiny bit of weight (they are still very light indeed) this design gives the frame greater strength, rigidity and durability.
Rather than three positions on the swivel blade version, the Mk4 HD has eight stops - i.e. every 45 degrees.
They still use standard 5" plain ended blades - available in a massive range of pitches and tooth configurations.
In short, the best just got even better!