Shimpo FGM6FTG20U Grip Adapter is a Flat Chuck Tensile Grip 100 lb Capacity, Accepts Samples to 20mm Thick, M6 Thread, Sold Individually. Each serrated gripping face is 0.79" (20 mm) square and can accept samples up to 0.79" (20 mm) thick. Shimpo parts and accessories.
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
