This deluxe crimping tool is designed specifically for tightening Oetiker Hose Clamps (Part No. 3295-Size, sold separately). The crimping jaws are thin enough to crimp the ears close to the body of the clamp, but not so thin that they cut into the clamp. The dual-jaw design lets you use the tool with the handles perpendicular to the hose or parallel to the hose, allowing access in almost any situation. You can even crimp your Oetiker clamps if the hose is already installed on your engine! Sold individually.