3Pcs 10-20 mm Lapidary Super-thin Diamond Coated Drill Bit Hole Saw 0.5-0.6mm Rim Save Materials for Jasper Glass 

Product name:Gemstone Drill Bits, Jewelry Drill, Jewelry Tools.

Model: Diamond Hole Saw Drill Bit     

Type:   Hole Cutter
Quantity:  Total 3Pcs
Hole Diameter: Please select the Hole Diamter you need
 

Hole Diameter

External
Diameter

 Internal
Diameter

Shank
Diameter

Rim
Thickness

Total
Length

Drilling
Depth

Quantity

10mm (3/8 inch)

10mm

8.8

6-7.5

0.5

50

23

3 Pieces

10.5mm

10.5mm

9.3

6-7.5

0.5

50

23

3 Pieces

11mm (7/16 inch)

11mm

9.5

6-7.5

0.5

50

23

3 Pieces

11.5mm

11.5mm

10

6-7.5

0.5

50

23

3 Pieces

12mm (15/32 inch)

12mm

10.5

6-7.5

0.5

50

23

3 Pieces

12.5mm(close to 1/2")

12.5mm

11

6-7.5

0.5

50

23

3 Pieces

13mm

13mm

11.5

6-7.5

0.5

50

23

3 Pieces

13.5mm

13.5mm

12

6-7.5

0.5

50

23

3 Pieces

14mm (9/16 inch)

14mm

12.5

6-7.5

0.5

50

23

3 Pieces

14.5mm

14.5mm

13

6-7.5

0.5

50

23

3 Pieces

15mm (19/32 inch)

15mm

13.5

6-7.5

0.5

50

23

3 Pieces

15.5mm

15.5mm

14

6-7.5

0.5

50

23

3 Pieces

16mm (5/8 inch)

16mm

14.5

6-7.5

0.6

50

23

3 Pieces

16.5mm

16.5mm

15

6-7.5

0.6

50

23

3 Pieces

17mm (43/64 inch)

17mm

15.5

6-7.5

0.6

50

23

3 Pieces

17.5mm

17.5mm

16

6-7.5

0.6

50

23

3 Pieces

18mm (23/32 inch)

18mm

16.5

6-7.9

0.6

52

24

3 Pieces

18.5mm

18.5mm

17

6-7.9

0.6

52

24

3 Pieces

19mm (close to 3/4")

19mm

17.5

6-7.9

0.6

52

24

3 Pieces

19.5mm

19.5mm

18

6-7.9

0.6

52

24

3 Pieces

20mm

20mm

18.5

6-7.9

0.6

52

24

3 Pieces

 
Product Description
1.The super-thin Electroplated diamond drill bits are one of the finest drill bit manufactured for Hobby, Lapidary, Glass applications. 
2.This diamond drill bit will perform well on drilling just about any kind of rock
From the very soft Petoskey Stone fossils to hard jasper and agate, and so on precious materials.Especially suitable for use on hard lapidary materials like agate, jasper, petrified wood and geodes.
3.Apply to drilling the ceramics and glass widely
For example: the glass of watch, optical glass, super-thin glass, architecture glass, automobile glass, LCD glass, quartz glass etc. 
Product advantages
Diamond drill bit very thin, can reduce material consumption maximize: 
The thickness of the drill bit’s rim is only 0.5-0.6 mm, the material of Processed aren’t damaged during drilling process, save material for high value jade, agate, jasper, petrified wood and geodes. A very good cost effective option for those that want very thin kerfs.
Hole drilling high precision:
The rim of drill bits are very smooth and thin to meet the most exacting faceting requirements. Neat, smooth, no broken edge. 
High drilling efficiency:
Sharp, improve the drilling speed, Drill a Holes In Seconds
Long service life:
Super-thin drill bits are made of high quality fine diamond particles, it’s more durable than common diamond bit! Drilling hole after a period of time, We recommend that you using the drill bit to drill white corundum grinding wheel for several times, the diamond particles on the front end of the drill will appear again, and then you can continue to use the drill bit.
Quick Tips
1. Water or coolant must always be used to cool and lubricate the tip.
2. The bit is suitable for use in bench drill, electric drill or rotary tool, recommended to be used in bench drill.
3. Never use drills while machine is in hammer action.
We Can List Any Size & Amount Of This Product: Hole Diameter from 3mm - 100mm
Regular Air postage from China to United States is FREE and takes 15-35 days delivery to your home
We will send out your order within 1-2 days after payment has been received and cleared. 
 
 
 



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