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Feature

Diamond dust coating offers superior performance and cutting strength
Opening neat and smooth, no broken edges, no shaking and chip easily
Small incision resistance, drilling stably and will not break the border
Suitable for porcelain, glass, tile, ceramics, stone, granite and other hard surfaces, for most common standard electric drillers
Please add lubricants or water frequently to avoid sparks while using these coated grit hole saw set, can also enhance the working life by doing this

Description

These drill bits are cutting tools used to remove material to create holes of circular cross-section.They come in many sizes and can create different kinds of holes in many different materials. Attached to a drill which powers them to cut through the workpiece by rotation.

Specifications:

Material: 45# steel+diamond

Color: Gold

Size: 6-25mm (10types)

6/8/10/12/14/16/18/20/22/25mm

0.24/0.31/0.39/0.47/0.55/0.63/0.71/0.79/0.87/0.98inch

Weight: 436g(approx.)

Method of Use:

1, Use in wet drilling or dry drilling.

2, To prolong its using life, better to use with water for cooling and lubrication.

3, The hole drill bit can be used with bench drill, hand electric drill.

4, When you using hand electric drill, start slowly at 45 degree angle and go vertical after you make an initial mark.

Package Includes:

1 Set(10pcs) x Diamond Drill Bits

Note:
1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding.
2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.