Description:
Diamond core drill bit, hole puncher fits for air-conditioner and range hood, diameter 20/30/40/51/63/76/102/120mm.

Specification:
Color:wine red;
Material:metal alloy;
Size:

Features:
Great wall shape teeth are sharp and tough.
M22 Thread fit for most of water drill.
360 seamless steel pipe, more durable.
Multifunctional for air condition installation, water pipe, traffics and engine room.

Note:
1. The tool needs to be cleaned before use to ensure accuracy.
cutting amount, rotation speed and cutting fluid should be selected reasonably.
the tool is used, and cleaned and oiled, keep it in a safe place.
the integrity of the hole drill before use.
drilling the hole, keep the hole perpendicular to the workpiece.
drilling is to use a small amount of force, and use medium force after positioning.
drilling, the rotation speed should not be too low, so as to avoid the knife jam and cause the knife to collapse.
the drilling and drilling work, the hole drill should be rotated to exit the work.
drilling continuously, the cutting edge should be cooled with cutting fluid.

Package Included:
1x drill
Product Attributes:

• Weight (lbs.): 1.25 lb