Each lever offers a different power level and function. The red lever is best for general metal stamping, forming, rivetting, using a circle cutter and engraving. The blue handle is best for using a circle cutter in soft metals, light riveting, doming discs/forming sheet, setting grommets. Additionally, leather workers often use the blue handle. While the yellow handle is capable of generating 10 tons, it's real use is that it requires less physical strength to generate 5 tons. The yellow lever is for someone who has limited hand strength but still wants to displace metal, engrave and stamp.  
 
Red
Length: 16”
Material: 1/2" round steel
Movement: About 1/4”
Power Generated: 50lbs of force generates 5 tons
 
Heavy Duty Red
Length: 16"
Material: 5/8" round steel
Movement: About 1/4"
Power Generated: 50lbs of force generates 5 tons
 
Blue
Length: 16”
Material: 5/8" round steel
Movement: About 1/2”
Power Generated: 50lbs of force generates 2 tons
 
Yellow
Length: 14”
Material: 1/2" round steel
Movement: About 1/16”
Power Generated: 50lbs of force generates 10 tons
 
 
These are made to order, please allow 5-10 days before shipping