Description

• DRILL 7/8 inch HOLES in glass bottles, porcelain and ceramic tiles, plant pots, quartz, fish tanks, granite, and marble with 7/8 inch diamond coated drill bit hole saw.
• GREAT for making wine bottles with light strings. Can also drill through glass blocks. You can drill through bathtub tile, and install handlebars. Aquarium drill bit for overflow installation.
• WORKS with STANDARD electric, cordless or upright drill presses. Shank size is 3/8 inch.
• EASY TO USE Diamond Drill Bits. Start at an angle, go vertical, and do not apply too much pressure. Keep the tool wet for cooling.
• 7/8 inch DIAMOND TIPPED DRILL BIT for drain holes, bottles, quartz, shower, faucet, kitchen, and bathroom upgrades.

Here is how you could use water to keep the tool cool:
a- You can build a mini water dam around the hole with plumbers putty.
b- You can choose to spray water on the drill bit.
c- Or you can use running water to cool the drill bit.
EASY TO USE
Center pilot drill bits are for wood, metal, etc.; Here is how you can keep the drill bit on target:
a- You can make your own guide out of plywood – plastic or even a card board. All you need is to keep the drill bit in place until it makes the initial marks.
b- You can start drilling at an angle, with the edge of the drill bit making a C slot and then getting the drill bit up to vertical.
c- You can manually guide the drill bit with wet sponge.