The Beta Tools Angular Screwdriver, No. 1439/K7, is mainly intended to adjust carburetors, but the seven interchangeable blades and bits that come in the case allow it to be adaptable to other applications. The 19” lightweight, aluminum screwdriver has an internal 90-degree bevel gear and a 32mm head that allows it to reach idle mixture screws. The 1439/K7 features a side grip handle that fits any position on the shaft and a 1/4” hex drive bevel head with bit retaining spring.