Kant Twist 396 Universal Round Handle Clamp, 3/4" Holding Size, 1-1/2" Length x 1-3/8" Width, 200 lbs Holding Capacity 

• Kant-Twist, totally U.S. made, is the standard in universal clamping devices.
• Combines the best features of "C" and parallel clamps.
• Kant-Twist clamps weigh approximately half as much a much comparable C-Clamps, yet are much stonger by actual test.
• The only "C" clamp with built-in "V" blocks.
• Provides new freedom of movement.
• Eliminates distorting and twisting.
• Provides three different gripping surfaces.

"D" = Deep Throat