When using a water drilling machine, stability is crucial. Our expansion bolts for are for this purpose. These concrete screws with drill bits are easy to install. Just drill the appropriate size hole, place the expansion bolt inside, and tighten it to secure your water drill firmly in place, preventing any unwanted movement. Features -Color:Black -Material:Carbon Steel -Size:16.00X3.50X3.50cm/6.29X1.38X1.38in -Quick fixation: the wedge anchors for water drilling machines provide rapid and secure fixation, boosting overall productivity -Metal: constructed from materials, these wedge anchors ensure durability and dependable performance -Userfriendly: with an easy installation process, these wedge anchors can be set up in just a few simple steps, making them convenient -size: these wedge anchors cater of water drilling machines -Extensive use: suitable for a wide range of applications, including home improvement and construction projects, these wedge anchors are highly versatile Package list: 1 x expansion screw