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3/4"
Bonded
Diamond Drill Bit DT-518
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Size:
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Designed for Drilling |
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Wall
Tile |
Ceramics |
Glass |
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Floor
Tile |
Marble |
Glass Bottles |
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Stone
Tile |
Slate |
Glass Block |
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Porcelain |
Thin Stone |
Fiberglass |
Electroplate bonded diamond drill
bit. Drill glass, tile, porcelain, ceramics and stone to
depths of about 1/2".
- * Drill
the new "Super-Hard" porcelain tile.
- * Drill
glass & ceramics without breakage.
- * US
Sizes (not similar metric sizes).
- * Fits
any 3/8" hand drill or drill press.
- * Use
water for lubrication & cooling.
Do not use with hammer
drill.
Consult usage instructions below.
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3/4" Bonded
Diamond Drill Bit
$24.95ea
7+
$21.96
16+ $18.77
50+ $16.24
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In Stock
Ready to Ship
Standard Delivery
via Priority Mail
2-3 day delivery |
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Designed for
Drilling |
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Wall
Tile |
Ceramics |
Glass |
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Floor
Tile |
Marble |
Glass Bottles |
|
Stone
Tile |
Slate |
Glass Block |
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Porcelain |
Thin Stone |
Fiberglass |
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Designed for drilling
to about 1/2" depth. |
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DiamondSure brand Electroplated
Diamond Drill Bits are also know as Diamond Core Drill Bits
or Diamond Hole Saws.
They are often thought of as
a Glass Drill Bit or Tile Drill Bit, but they are
much more versatile since they are used to drill glass, ceramics,
porcelain, ceramic tile, porcelain tile and thin stone like limestone,
slate, marble, granite, and also fiberglass. Water is required
for lubrication when drilling.
Old fashioned
Spear Point carbide bits
no longer work on the new type of
super-hard floor, counter and wall tiles.
Diamond Drill Bits are the solution. |
Hole Saw
style drill bits have a hollow center and cut a circle in the
material to create a hole. This results in a hole the size of
the bit and a smaller "plug" or "core" which
comes from the center. They are sometimes referred to as
Diamond Core Drill Bits, however, technically core drill
bit sizes relate to the size of the core, not the hole size.
Our Diamond Drill Bits are available in sizes from 5/64"
to 5-1/2" (outside diameter). |
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Our Stock Number: |
DT-518 |
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Brand Name: |
DiamondSure |
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SKU / Model: |
900-008 |
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Drill Bit Size: |
3/4" OSD |
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Max Drilling Depth: |
About 1/2" |
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Specs: |
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Fractional Size: |
3/4" |
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Tip Style: |
Hollow |
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Diamond Grit: |
80 |
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OSD - US: |
0.76" |
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OSD - Metric: |
19.3 mm |
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ISD - US: |
0.66 |
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ISD - Metric: |
16.7 mm |
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Shaft Diameter: |
5/16" |
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Sidewall Thickness: |
0.05" |
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Shaft Length: |
1" |
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Tip Length: |
1-1/8" |
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Total Bit Length |
2-1/4" |
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Other: |
Bit requires water for lubrication
and cooling. |
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Proper drill speed, pressure and
lubrication are necessary to keep the bit from over heating when
drilling in very hard materials. |
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Raise the drill bit up slightly
every 30-40 seconds, to allow water to penetrate to the drilling
tip. |
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Do not use with a hammer impact
drill
or for drilling concrete or masonry. |
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Water Lubrication
Water must be used for lubrication.
There are many ways to lubricate the drilling, as explained in
our Drilling
Tips & Techniques page.
Simple lubrication methods include
drilling under water in a cake pan or tub, using a small clay
"dam" around the drill hole area or even using a spray
bottle to spray water directly into the drill slot. These
simple lubrication methods are very effective when used properly
and they work well for most drilling applications.
It is important to "pump"
the drill periodically - about every 30-40 seconds, to allow
water to seep to the drilling tip area. Merely raise the
drill bit slightly to allow water to flow to the tip and keep
the tip from running dry. This simple technique helps keep
the drill bit from overheating, extends the bit life considerably
and helps avoid causing "heat fractures" in the work
materal. |
IMPORTANT
Diamond drill bits require
use of proper lubrication,
correct drill speed and proper pressure.
Drilling methods and techniques can vary depending upon the specific
material being drilled.
Please See: Drilling
Tips & Techniques |
Starting a Hole
Saw / Core Drill
Starting a hollow core drill
/ hole saw style drill bit can sometimes be difficult.
Our Drilling
Tips & Techniques section discusses the various starting
methods.
Method 1: To start drilling, you can usually
hold the tip in place with your fingers while running the drill
at a very slow speed. Once the bit has created a slight
'groove', the drill bit will remain stationary on it's own.
Method 2: For smaller drill bits, you can
also hold the drill at a 60 degree angle while running the drill
at a very slow speed. As the drill bit begins to drill,
slowly tilt the drill bit up to vertical. Once the bit
has created a slight 'groove', the bit will remain positioned.
Method 3: A template can be made by drilling
a pilot hole, the size of the diamond drill bit, in a piece of
soft wood or plastic. Hold the template in place over your
drilling area and use the 'pilot hole' to hold the drill bit
in place when beginning to drill. You can also use a "V"
notch on the edge of a starting template to help hold various
sizes of core drill bits while starting to drill.
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Drill Speeds
It is very important to use proper
drilling techniques to keep a diamond drill bit from over heating
and to avoid causing "heat fractures" in the material
being drilled. Proper drill speed, low pressure and good
water lubrication are very important factors. |
DiamondSure
Bonded Diamond Drill Bits
Recommended Drill Speeds
DiamondSure
Bonded Bits |
Recommended
Drill Speed (rpm) |
|
Material Bit Size --> |
1/2" |
1" |
2" |
3" |
4" |
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Fiberglass |
1200 |
700 |
350 |
250 |
175 |
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Glass, Ceramic & China |
800 |
500 |
250 |
160 |
125 |
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Limestone Marble Stone |
600 |
450 |
225 |
130 |
100 |
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Ceramic Wall Tile |
600 |
450 |
225 |
130 |
100 |
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Porcelain Wall Tile |
500 |
375 |
180 |
125 |
90 |
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Porcelain Floor Tile |
500 |
375 |
180 |
125 |
90 |
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Granite Stone |
400 |
300 |
150 |
100 |
75 |
Not for use on
Concrete
or depths beyond about 1/2"
Do not use with Hammer Drill
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SPEED KILLS: |
Reduced drill speeds,
low drill pressure and good use of water lubrication will extend
diamond drill bit life considerably. |
DiamondSure
Bonded Diamond Drill Bits
Recommended Drill Head Pressure
|
Material |
Drill
Head Pressure |
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Fiberglass |
10 to 15 lbs. |
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Limestone & Marble Stone |
12 to 18 lbs. |
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Glass, Ceramic. Porcelain
China |
12 to 18 lbs. |
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Ceramic/Porcelain Wall Tile |
15 to 20 lbs. |
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Porcelain Floor Tile |
18 to 30 lbs. |
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Granite Stone |
18 to 30 lbs. |
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WARNING: |
Drill press arm gears
leverage hand pressure by about 6 to 8. So 2 lbs of hand
pressure on the drill press arm can apply up to 16 lbs of pressure
to the drill head. |
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Under development. Coming Soon...
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Under development. Coming Soon...
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Drill Bit & Tool 1998-2021.
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