Using a staple gun shouldnt be a workout. Rapid ALU Combi Tackers with Powercurve Technology were developed with a leading physiotherapist for up to 65% less effort. Its not only easier to squeeze, it also perfectly matches the power of your hand. The patented 3-step force adjuster system lets the user decide for themselves how much power to deploy. Save effort on jobs with short leg lengths and turn up the power with a simple flip of the force adjuster when required. Save energy - Your own.