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  • SPP 500C Cordless Caulk Dispenser.
    SPP 500C Cordless Caulk Dispenser.
The SPP 500C Cordless Caulk Dispenser features a microprocessor-controlled variable-speed motor and all-metal gearing with a 1,300:1 gear ratio, so you can apply more caulk or adhesive with less effort, says the maker. It comes in a kit with interchangeable 10- and 29-ounce cartridge holders, a one-hour charger, and a 14-volt niMH battery, and costs $360. Stout Tool, 877/337-8688,