New Old Stock BESSEY made in Germany SL20M High Performance Fabricators Clamp 8" x 4.75" 5% Cobalt Steel Hss Lathe Tool Bit The WW collets that are

The WW collets that are larger than the through-hole diameter are sometimes referred to as “pot” chucks

•Chuck bodies are semi steel (cast)•Jaws are made of high quality steel•Thrust bearings and operating screws are made of case hardened steel•Solid jaw chucks come with one set of hard solid reversible jaws•12" chucks come with T-slots

and features a black oxide-finish and is precision made for snug fit between the driver and scope screw that minimizes the potential for damage to the screw head when torque is applied

#5 Morse Taper Shank Taper Designation

These premium quality pliers were made by NWS in Germany  for Irwin years ago

New Old Stock BESSEY made in Germany SL20M High Performance Fabricators Clamp 8" x 4.75" 5% Cobalt Steel Hss Lathe Tool Bit The WW collets that areNew Old Stock BESSEY made in Germany SL20M High Performance Fabricators Clamp 200 120 (8" x 4. 75"). Premium German quality. Key Features Clamping force up to 8,500N ( 1910 pounds force) at tightening torque of 25Nm Greater reserves of power, thanks to optimised rail profile, for even clamping force build up Maximum safety due to the better linear transfer of force of the sliding arm Long life due to heat resistant pressure plate with sintered steel