Cylinder Rack, 1 Cylinder, 8 in Semi Pneumatic Wheels no checkout Single flute cutting edge for greater Single flute cutting edge for greater control through steps 3 flatted shank prevents slipping in drill chuck Also available with titanium nitride coating for longer life Patented single flute cutting edge gives the user a true round hole every time Ideal for drilling holes into thin materials such as stainless steel the three smaller models will fit conveniently into a shirt pocket All have sturdy friction joints to maintain rigidity and accuracy Perfect for quick deliveries to hospitals labs or anywhere else cylinders are needed Double trailwheels make transporting high pressure cylinders even easier Polyurethane casters ensure quiet performance