Product Description Bit for square head screws, commonly used in sashes and earthquake-resistant hardware. ● The ring prevents it from getting stuck in the chuck. Product Specifications Material: Special alloy steel Country of Origin: Japan Quantity: 5 pieces/set Set Contents/Accessories: SQ2 x 110 = 5 pieces The outer box may have damage such as tears or peeling, so we are selling it at a bargain price. There is no impact on the contents, so please rest assured.