Product Review

A Must-have Hole Saw Kit for Glass Processing, Interior Decoration, or DIY Projects Alike!
This 12 pieces drill bit set bores circles in ceramic, glass, granite, tile, slate and more in seconds! With sizes ranging from 4mm-50mm in diameter, you'll have a bit for all of your needs.

Ingenious Design Makes Drilling a Breeze
Each drill bit comes with a shank that holds the bit in place without slipping. You'll be able to drill clean holes effortlessly! Two side holes on the bits allow for easy slug removal to increase drilling accuracy and efficiency. Obnoxious debris will be removed automatically so that the bits last as long as possible.

Unbeatable Durability
At , we want to give you the best-- that's why these bits are crafted from high-quality steel! The premium steel is double-tempered for increased hardness. They can cut through a wide variety of materials with little to no resistance! Diamond dust adds even more strength. The Diamond Drill Bits will be as good as new, even after years of repeated use.

Specification
-Material: Steel+ Diamond Dust
-Color: Silver
-Special Feature: Always use water for lubrication

Notes:
1.These bits are not suitable for drilling concrete or materials that are thicker than 0.5 inch.
2.To prolong the life of the bits, lower drilling speed and wet the surface with water for added lubrication.
3. If you smell burning, back off! Either your speed is too high or the pressure you're applying is too much.
You're drill bit should never be hot to the touch, not even warm.
-Slowest speed
-Always use lubrication (water)
-Minimum pressure

Package Content
12* Drill Bit/ Hole Saw