UNIKA UR21 Blaze Diamond ST Shank Large Diameter (Ventilator, Air Conditioner, etc.)

[No vibration, low noise. Smooth and clean drilling.]
It is possible to drill holes neatly even in soft and hard siding materials that are prone to cracking using only rotational force.
The spiral groove around the outer circumference of the body and the blazed diamond cutting edge prevent clogging, provide excellent sharpness, and ensure a long life.
Complete set including center drill, body, and shank assembly.
The body can be easily replaced without tools, and can be easily attached and detached with one touch.
The shank is common, so by replacing the body and center drill, various types of holes can be drilled.
ALC, PVC boards, extruded cement boards, ceramic siding boards, mortar, blocks, bricks
* Please use the center pin for drilling the mortar.