Diamond Hole Saw Kit - 8PCS 25/35/50/75/100mm Core Bit + 20mm Finger Bit + 50mm Chamfer Bit + SDS Adapter for Porcelain Tile, Ceramic, Marble, Granite

Vacuum Brazed Diamond Technology: More Heavy Duty and Wear Resistant than electroplated diamond bit, provide very high efficiency, cuts faster, durable and sturdy

Fit Most Tools: Dry Diamond Core Drill Bit can be used on most angle grinders (5/8-11 thread) directly, or hammer or electric drill with SDS PLUS connector by SDS adapter (included)

Precautions for use Can be used for both wet and dry applications.

Applicable machine: Angle grinder.

When switching to a device with an impact mode, do not use the impact mode.

Use the suction cup locator to accurately position the drilling location. Alternatively, place the drill at a 45 - degree angle, drill in a circular motion until the drill bit starts to penetrate the material, then lift the drill bit to a vertical position and continue.

STEP 1 Clean the surface and align the cut point at a 45-degree angle

STEP 2 Continuously drill holes in a 45-degree circular motion

STEP 3 Bit starts to penetrate the material and then raises the drill to a vertical position

STEP 4 Continue drilling in vertical position