German four-groove cement drill bit (AA14316-D)

• German four ditch cement drill bit, four ditch cement drill tail
• It adopts super-hard alloy cutter head and is connected by hot brazing. The material is hard, impact-resistant and has low wear rate.
• U-shaped groove design facilitates chip removal
• Carbide cutter head, most suitable for use with no-output four-groove hammer drill

Product specifications:

Instructions:

• Before drilling a deep hole, you must pre-drill a shorter intermediate length hole of the same specification. The drill bit needs to be withdrawn every 10 seconds to allow for heat dissipation.
• When drilling, it is necessary to maintain a stable pressure and frequently remove the drill bit from the drill hole to remove debris. Use a slow speed to drill harder materials to extend the life of the drill bit.
• It is recommended to use a 4kg hammer drill for drilling in B50 cement concrete