●Manual Tensioners and crimpers are for low volume applications ●Automatic hand tools are used for high volume applications ●Battery powered and Pneumatics (compressed air) are a source of power for automatic tools ●Automatic and manual tools can be combination tools. ┤Combination Tools perform tensioning, seal and cutting. ┤Combination Tools can be used as separate tensioners, seals, and cutters ●Manual sealers for plastic strap always use a seal and a crimp joint. ●Automatic hand for plastic strap use a friction weld.