Knew Concepts Mk.IV 8" HD Saw Frame with Lever Tension

The Knew Concepts Mk.IV 8" Heavy Duty Jeweler's Saw Frame delivers a remarkable 60 pounds of blade tension — 2–3 times more than standard Knew Concepts saw frames. That dramatic increase in tension eliminates flex in the frame, resulting in significantly improved cutting accuracy for demanding metalworking and jewelry fabrication tasks.

Due to the exceptional strength of the Mk.IV Heavy Duty construction, these frames are available exclusively with Cam Lever Tension. Traditional screw tensioning is not practical at this level of frame rigidity, making the lever mechanism the ideal solution for fast, reliable blade clamping.

The added weight of the Heavy Duty frame is a direct trade-off for its superior stiffness and tension capacity — a worthwhile exchange for jewelers and metalsmiths who require precise, flex-free performance on heavier cutting work.

Features

• Delivers approximately 60 pounds of blade tension — 2–3 times more than standard Knew Concepts frames
• Eliminates frame flex for improved cutting accuracy and control
• Cam lever tension system provides fast, secure blade changes
• 8" frame depth accommodates a wide range of workpiece sizes
• Heavy-duty construction engineered for rigorous professional use

Specifications

Notes

The Knew Concepts Mk.IV Heavy Duty Hand Saw is also available in 3" and 5" frame sizes, as well as configurations with Lever Tension combined with 360-degree Swivel Blade Clamps. This product is subject to California Proposition 65 warnings regarding lead and nickel.

California Prop 65 Warning:
This product can expose you to lead and nickel, which are known to cause cancer, birth defects or other reproductive harm. www.P65warnings.ca.gov.