Chestnut Screw Driver Set **
Set securely fits #4 to #10 slot wood screws. Made of stainless steel and comes with a carbide burnisher that allows you to burnish the tips of the blades to create small hooks on the edges. When using brass screws; the small hooks bed in the brass as you apply torque; preventing the screwdriver from sliding horizontally or vertically in the screw slot.
The oval handles do not require a death grip to prevent slippage in your hand. The screwdriver shaft; being the same size as the tip; allows you to counterbore screw holes that you later intend to plug; avoiding all marring of the surface as can happen when using a spade-tip screwdriver.