CPROSP 1 ¼" UNC Diamond Core Drill Bit for Wurth Wet Cutting Diameter 122 mm, L 420 mm, Core Drill for Concrete, Reinforced Concrete, Masonry and Stone Corature

• Compatible equipment: Hand drill and core drill. Warning: Do not use with electric hammer and hammer drill.
• Product parameters: Diameter: 122 mm, total length: 420 mm, useful length: 370 mm, teeth: 11 Attention: the centering drill is not included.
• Note: During use, you need to add water continuously. If using the water drill extension, tilt the drill first to draw a mark on the work surface, and then bring the drill to the horizontal position to continue drilling.
• Use: for drilling concrete, reinforced concrete, masonry and stone.
• After-sales service: If you have any questions during use, please feel free to contact us via the orders page.

This product is suitable for the installation of construction, plumbing, electric, gas, air conditioning and pipes through holes in the wall. Product description: Installation: Connect the drill bit to the adapter thread and install it on the drill machine. Working steps: 1, Pre-drilling: Place the drill bit with a certain angle of inclination near the wall, exert intermittent pressure on the power switch, drill a crescent-shaped groove in the wall, straighten the tilt angle of the drill 2, Formal drilling: apply adequate pressure in the groove drilled with the pre-drilling to push the drill downwards. 3, Maintenance: Rinse immediately with water after use to avoid cement hardening and clogging; regularly check the wear of the diamond cutting head. Precautions for use: Drill Installation: First check whether the chuck is swaying, electrical and mechanical parts are in order, and during installation, make sure the drill bit is tightened with the drill and kept centered. Rhinestone: water must be added continuously during use. It is used in drilling and core drilling technique. It is recommended to use fixed or manual drills.