[Diameter of countersunk|round screw diameter 2.4~3.5mm]
[Diameter of countersunk|round screw 3.5~4.5mm in diameter]
[Diameter of countersunk|round screw diameter 1.6~2.4mm]
For use with bisnooki bits, which can remove undetachable, tanned (crushed) plus hole screws. Can be used with positive and reverse electric drills and hand crank drivers. Package Size: Length: 5.6 inches (142 mm), Width: 1.6 inches (40 mm), Height: 0.5 inches (12 mm); Package Weight: 0.7 oz (20 g); Country of Origin: Japan; Material: Hexagonal Shaft: 0.2 inches (6.35 mm); Vinnuki bit: Engraving: 1.5 - 3.5 mm (1.5 mm); Compatible wood screw. Note: With a hand crank screwdriver. Please note that the total length of the compatible wood screws is short when unplugging them. Not for use with carbon heat treatment or stainless steel screws.
●下穴ドリルで下穴をあけた後に、逆回転で逆スパイラル鋭利刃が木ネジを抜きとります