Specifically designed for securing all types of metal trim and tackless strips, this tool is highly effective on cement, terrazzo, marble, slate, or any masonry floor. The four corners of the square drive create strong contact with the wall of the undersized round hole, generating significantly more holding power than needed for a secure fit. The flat head style measures 3/16″ in diameter and 7/8″ long, requiring a 3/16″ x 1″ hole.
Product Features:
- Semi-square body squeezes tight when hammered into drilled hole
- Works well in cement, terrazzo, marble, slate or any masonry floor
- The four corners of the square drive contact the wall of the undersize round hole with tremendous force, generating several times more holding power than is necessary for secure fastening
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