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Diamond Core Drill Bits

Diamond Drill Bits
Tile Drill Bit, Glass Drill Bit,
Diamond Hole Saw

Diamond Drill Bits for Tile and Glass

Specifically Designed for Drilling Holes In  
  Glass Marble Limestone Slate
  Glass Jars Ceramics Porcelain Granite
  Stained Glass Ceramic Tile Porcelain Tile Stone
 

(Designed for materials to about 1/2" Thick)

Electroplate Bonded Diamond Drill Bits

Diamond Drill Bits, are also know as Diamond Core Drill Bits, Diamond Hole Saws or Bonded Diamond Drill Bits.  They are often called Glass Drill or Tile Drill, but they are 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.

Core 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.  The Diamond Drill Bits are available 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 of the bits.



For Detailed Size
Info of Core Drills
<Click Here>

Diamond drill bits are easy to use, however, there are many special techniques which are different from standard steel-bit drilling.  Diamond drill bit usage can also vary depending upon the type and the specific manufacturer.  To assist our customers, we have compiled a detailed Drilling Tips & Techniques section.

 

 

Core Drill Bits

 

Recommended Drill Speeds

DiamondSure - Bonded Bits

Recommended Drill Speed (rpm)

Material         Bit Size --> 

1/2"

1"

2"

3"

4"
 Fiberglass

1200

700

350

250

175
 Glass, Ceramic & China

800

500

250

160

125
 Limestone & Marble Stone

600

450

225

130

100
 Ceramic Wall Tile

600

450

225

130

100
 Porcelain Wall Tile

500

375

180

125

90
 Porcelain Floor Tile

500

375

180

125

90
 Granite Stone

400

300

150

100

75
(Not for use on Concrete or for depths beyond about 1/2")
SPEED KILLS:  Reduced drill speeds, low drill pressure and increased use of water lubrication will extend drill bit life considerably.
.
Because diamond 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.
.

 

For Detailed Size
Info of Core Drills
<Click Here>

 

 

Tile Drill Bits

Recommended Drill Head Pressure

Material

Drill Head Pressure *
 Fiberglass

10 to 15 lbs.
 Limestone & Marble Stone

12 to 18 lbs.
 Glass, Ceramic & Porcelain China

12 to 18 lbs.
 Ceramic/Porcelain Wall Tile

15 to 20 lbs.
 Porcelain Floor Tile

18 to 30 lbs.
 Granite Stone

18 to 30 lbs.
* WARNING:  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.

All diamond core 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 and bell length) - See diamond drill bit - size chart <Click Here>

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 <Click Here>

 

Bonded Diamond Bit / Glass Drill Bit / Tile Drill Bit

Measurements Shown Below are Outside Diameter
(Click on individual drill bit pictures for detailed specifications)







Glass Drill Bits
5/64"   1/8"   3/16"   1/4"

--- Item ---

  Price
  Qty / Order?
 
DT-502  5/64" Diamond Bit (2.0mm/.08")
                                     
List Price $16.95
ea  11.95
12+ 10.56
30+   8.97
90+   7.74
   
DT-503  1/8" Diamond Bit (3.3mm/.13")
                                     
List Price $18.49
ea  12.95
12+ 11.36
28+   9.67
85+   8.44
   




1/4" Diamond Core Drill Bit
5/64"   1/8"   3/16"   1/4"

DT-505  3/16" Diamond Drill Bit (4.9mm/.19")
                                     
List Price $19.95
ea  13.95
10+ 12.26
26+ 10.47
80+   9.14
   
DT-507  1/4" Diamond Drill Bit (6.5mm/.26")
                                     
List Price $21.95
ea  14.95
10+ 13.16
24+ 11.27
72+   9.74
   



3/8" Glass Drill Bit
5/16"          3/8"

DT-508  5/16" Diamond Drill (8.1mm/.32")
                                     
List Price $23.49
ea  15.95
9+  13.96
24+ 11.97
72+ 10.34
   
DT-515  3/8" Diamond Drill (9.7mm/.38")
                                     
List Price $24.95
ea  16.95
9+  14.96
22+ 12.77
68+ 10.94
   


Tile Drill Bits
1/4", 5/16", 3/8", 1/2"
          4-Pack Assortment
                   SAVE 35% on Assortment! 
DT-590  4-Pack Diamond Bit Assortment
                   
(Sizes: 1/4", 5/16", 3/8", 1/2")
                                     
List Price $62.95
ea  43.72
5+  40.86
12+ 38.27
26+ 35.74
   
        35% Off Individual Bits Purchased Separately!



1/2" Diamond Drill Bit for Glass
1/2"            5/8" 

DT-516  1/2" Diamond Drill Bit (12.9mm/.51")
                                     
List Price $26.95
ea  18.95
8+  16.76
20+ 14.27
64+ 12.34
   
DT-517  5/8" Diamond Drill Bit (16.1mm/.63")
                                     
List Price $32.95
ea  21.95
7+  19.36
18+ 16.47
55+ 14.24
   



3/4" Diamond Bit
3/4"                7/8"

DT-518  3/4" Diamond Drill (19.3mm/.76")
                                     
List Price $38.95
ea  24.95
7+  21.96
16+ 18.77
50+ 16.24
   
DT-519  7/8" Diamond Drill (22mm/.87")
                                     
List Price $42.95
ea  26.95
6+ 
23.76
14+ 20.17
45+ 17.54
   



1" Tile Drill Bit
1"                   1-1/8"

DT-520   1"   Diamond Bit (25.7mm/1.01")
                                     
List Price $47.95
ea  29.95
6+  26.36
14+ 22.47
45+ 19.44
   
DT-521  1-1/8" Diamond Bit (28.8mm/1.13")
                                     
List Price $49.95
ea  30.95
6+  27.26
14+ 23.27
45+ 20.14
   



1-1/4" Tile Drill Bit
1-1/4"                    1-3/8"

DT-524  1-1/4" Diamond Drill Bit (32mm/1.26")
                                     
List Price $54.95
ea  33.95
5+  29.96
12+ 25.47
38+ 21.94
   
DT-525  1-3/8" Diamond Drill Bit (35mm/1.38")
                                     
List Price $59.95
ea  36.95
5+  32.86
12+ 27.97
38+ 23.44
   



DT-526  1-1/2" Diamond Drill (38.4mm/1.51")
                                    
List Price $64.95
ea  39.95
4+  35.56
10+ 30.37
32+ 26.34
   



1-3/4" Glass Drill Bit

DT-528  1-3/4" Diamond Bit (44.7mm/1.76')
                                   
List Price $72.95
ea  44.95
4+  39.96
10+ 34.17
32+  29.64
   



2" Tile Drill Bit

DT-530    2"    Diamond Drill Bit (51.1mm/2.01")
                                    List Price $84.95
ea  51.95
3+  46.26
8+  39.47
25+  34.34
   



2-1/4" Tile Drill Bit

DT-534  2-1/4" Diamond Drill (57mm/2.25")
                                    List Price $92.95
ea  56.95
3+  51.26
7+  43.87
24+  38.24
   



DT-536  2-1/2" Diamond Bit (63.9mm/2.51")
                                    List Price $104.95
ea  59.95
3+  53.96
6+  46.17
20+  40.24
   



DT-538  2-3/4" Diamond Drill Bit (70mm/2.76")
                                    List Price $114.95
ea  66.95
3+  60.26
6+  51.57
20+  44.84
   



3" Diamond Drill Bit

DT-540    3"    Diamond Drill Bit (76.5mm/3.01")
                                    List Price $129.95
ea  74.95
2+  67.46
5+  57.77
16+  50.34
   



DT-546  3-1/2" Diamond Drill (89mm/3.51")
                                    List Price $149.95
ea  85.95
2+  78.46
5+  66.97
16+  58.44
   



4" Glass Tile Drill Bit

DT-550   4"   Diamond Bit (102mm/4.02")
                                  List Price $174.95
ea  98.95
2+  89.96
5+  77.27
15+  67.34
   



DT-556  4-1/2" Diamond Drill (115mm/4.52")
                                    List Price $209.95
ea 109.95
2+ 99.96
4+  83.27
13+  69.34
   



5" Tile Drill Bit

DT-560  5" Diamond Bit (137mm/5.0")
                                    List Price $229.95
ea 119.95
2+ 107.96
4+  90.27
12+  78.34
   



DT-565  5"-1/2 Diamond Drill Bit (140mm/5.51")
                                    List Price $249.95
ea 129.95
2+ 119.96
4+  114.27
12+  89.34
   



                               
See also:  Drilling Tips & Techniques

 

 

 

 

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Diamond Drill

 

 

 

 

 

Glastar Diamond Tip Drill bits

Blunt Nose Solid Diamond Drill Bits

Electroplate Bonded Solid Tip Drills

For drilling glass, stained glass, china plates & fiberglass!

Blunt Nose Diamond 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 Diamond Drill Bits are primarily a Glass Drill Bit, for use on glass, stained glass, china plates or fiberglass.

These solid point bits are not designed 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 Blunt Nose 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 or 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 Diamond Core Drill Bits and How to Use Diamond Drill Bits.

--- Item ---

Price
Qty / Order?
 
TL-340  1/8" Blunt Nose Diamond Drill
                        
(Shaft size 1/8")

25.95
 
TL-341  1/4" Blunt Nose Diamond Drill
                        
(Shaft size 1/4")

27.95
 
TL-342  3/8" Blunt Nose Diamond Drill
                        
(Shaft size 1/4")

29.95
 


 

 

 

 

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Diamond File
Half-Circle shaft profile
shown in lower left of picture.

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

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More Diamond Files: <Click Here>


 

 

 

 

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How to Use Diamond Drills

<Click Here>


 

 

Diamond Drill & Tool
Omaha, Nebraska


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