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Diamond Drill
Bit
Tile Drill Bit, Glass Drill Bit
Diamond Tip Drill Bit, Diamond Hole Saw
Specifically Designed for
Drilling Holes In
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Glass
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Marble
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Limestone
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Slate
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Glass Jars
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Ceramics
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Porcelain
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Granite
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Stained Glass
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Ceramic Tile
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Porcelain Tile
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Stone
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(Designed for materials
to about 1/2" Thick)
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Electroplate
Bonded Diamond Tip Drills
Diamond Drill Bits, are also
know as a Diamond Tip Drill or Diamond Hole Saw.
They are often thought of as a Glass Drill Bit or Tile Drill
Bit, but a Diamond Tip Drill Bit is much more versatile
since they are used to drill glass, ceramics, porcelain, ceramic
tile, porcelain tile, limestone, slate, marble, granite, light
stone, and 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.
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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
a Core Drill Bit, however, technically core drill bit sizes relate
to the size of the core, not the hole size. The Drills
are available below in sizes from 5/64" to 5-1/2" (outside
diameter). The metric manufactured size of each bit is
also shown below (mm), along with the exact inch measurement
of each bit.
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Diamond bits are easy to use, however,
there are many special techniques which are different from standard
steel-bit drilling. Usage can also vary depending upon
the type and the specific manufacturer. To assist our customers,
we have compiled an extensive and detailed Drilling
Tips & Techniquessection.
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Recommended
Drill Speeds
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DiamondSure
- Bonded Bits
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Recommended
Drill Speed (rpm)
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Material Bit Size -->
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1/2"
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1"
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2"
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3"
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4"
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Fiberglass
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1200
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700
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350
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250
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175
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Glass, Ceramic & China
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800
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500
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250
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160
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125
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Limestone & Marble Stone
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600
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450
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225
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130
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100
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Ceramic Wall Tile
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600
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450
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225
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130
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100
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Porcelain Wall Tile
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500
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375
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180
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125
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90
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Porcelain Floor Tile
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500
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375
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180
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125
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90
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Granite Stone
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400
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300
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150
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100
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75
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(Not
for use on Concrete or for depths beyond about 1/2")
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SPEED KILLS:
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Reduced drill speeds,
low drill pressure and increased use of water lubrication will
extend drill bit life considerably.
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Because these drill bits
are used to drill in extremely hard materials, it is very important
to use proper drill pressure to keep from overheating the bit.
Excessive pressure is merely converted to heat energy and can
burn up a bit very quickly.
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Recommended
Drill Head Pressure
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Material
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Drill
Head Pressure *
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Fiberglass
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10 to 15 lbs.
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Limestone & Marble Stone
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12 to 18 lbs.
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Glass, Ceramic & Porcelain
China
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12 to 18 lbs.
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Ceramic or Porcelain Wall
Tile
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15 to 20 lbs.
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Porcelain Floor Tile
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18 to 30 lbs.
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Granite Stone
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18 to 30 lbs.
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* WARNING:
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Drill press arm leverages
hand pressure by a factor of about 6 to 8. So 2 lbs. of
hand pressure on the drill press arm will apply about 14 lbs
of pressure to the drill head.
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All these drill bits have shaft
sizes of 3/8" or less, for use in standard drills.
For detailed drill bit size information (total length, shaft
length, bell length, etc) - Click on the Detail Page link for
each drill bit listed below.
IMPORTANT
Diamond drill bits require
the use of proper lubrication, correct
drill speed and proper pressure. Drilling methods and techniques
vary significantly depending upon the material being drilled.
Not for
use on Concrete or with Hammer-Impact Drills,
or for depths beyond about 1/2"
Please See: Drilling
Tips & Techniques
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Glass
Drill Bit / Tile Drill Bit / Diamond Tip Drill Bit
Measurements Shown
Below are Outside Diameter
(Click on
individual drill bit pictures for detailed specifications)
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Item ---
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Price
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Qty
/ Order?
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1/4", 5/16", 3/8", 1/2"
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Diamond
Drill Bit Set
SAVE
35% on Assortment!
35%
Off Individual Bits Purchased Separately!
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to top of Pg
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Solid Diamond
Tip Drill Bit
Electroplate
Bonded Solid Diamond Tip Drill Bit
For drilling glass,
stained glass, china plates & fiberglass!
Blunt Nose Diamond Tip Drill
Bits work with any drill - just add water for lubrication.
Glastar brand drill bits are much easier and safer to use than
old-fashioned spear point steel drills and don't chip the work
material. Blunt Nose Drills are primarily a Glass Drill
Bit, for use on glass, stained glass, china plates or fiberglass.
These solid point bits are not
designed for as a Tile Drill Bit and should not be
used for drilling porcelain tile, floor tile, limestone, slate,
marble, granite or other stones. Glastar Blunt Nose Drill
Bits are designed to be used at high speeds up to 10,000 rpm.
Since Glastar Diamond Tip Drill
Bits have a solid rounded tip, they are slightly easier to start
when drilling on a curved surface, such as a bottle, when compared
to using a Core drill bit, above. However, since solid
tip drill bits drill out the complete hole, they also drill more
slowly than the hollow core style bits and they are generally
not used on the super hard abrasive materials such as ceramic
tile, porcelain tile, floor tile, limestone, slate, marble, granite
or other stones. Hollow core style drill bits are recommended
for drilling in these very hard materials and are available from
1/8" to 4" in the section, above. See also How to Use Diamond
Bits.
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Item ---
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Price
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Qty / Order?
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TL-340 1/8" Solid Diamond
Tipped Drill
(Shaft size 1/8")
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27.95
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TL-341 1/4" Solid Diamond
Tipped Drill
(Shaft size 1/4")
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28.95
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TL-342 3/8" Solid Diamond
Tipped Drill
(Shaft size 1/4")
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29.95
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Half-Circle
shaft profile
shown in lower left of picture.
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Diamond File
General Purpose File
With 'Half-Circle' Shaft Profile
Diamond coated file is 7"
long with "half-circle" shaft. A perfect general
purpose file for use on flat, rounded or curved edges.
Use on glass, stained glass, ceramic, marble, stone, fiberglass
or plastic. Blade of file is 3/8" wide, tapering to
a point. Perfect for filing off sharp edges, reshaping
cuts or reaming drilled holes. Handle is vinyl coated for
safety and comfort.
DF-151 7"
Diamond 'Half-Circle' File ........... ea 12.95 / 3+ 11.63
/ 8+ 9.29
Sorry - Out of Stock
More
Diamond Files:
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Drill Bit & Tool 1998-2021.
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