Columbia 8" Angle Box 8CFB

Columbia 8" Throttle Box Angle Box 8CFB The Columbia 8" ThrottleBox Angle Box 8CFB is a robust, efficient tool designed for drywall finishing tasks. Attach it to a corner finisher to apply a smooth, even finishing coat to 90° internal angles. The innovative stainless steel cone dispenses the right amount of drywall compound, ensuring a flawless finish every time. For your convenience, the ThrottleBox comes with a hinged door for effortless access and cleaning, while the long fill spout simplifies refilling. This product pairs well with the Columbia ONE Fiberglass/Extendable Handle (sold separately). The Columbia 8" ThrottleBox stands out with its handcrafted, all-billet construction, featuring a threaded stainless steel ball for seamless operation. Now standard with automatic capabilities, the Corner Box is 50% easier to push than its counterparts. The updated springs offer adjustable tensions and significantly reduce air pockets during use. Thanks to its patent-pending design, th