JINGLING 5Pcs 8-25.5 mm Lapidary Diamond Drill Bit Hole Saw Super-thin 0.5-0.6mm Rim Tools for Stone Glass   
Produce Name: Gemstone Drill Bits, Jewelry Drill Bits
Quantity:  Total 5 Pcs
Rim Thickness: 0.5-0.6mm
Hole Diameter: Please select the Hole Diamter you need

Hole Diameter

Outer
Diameter

Inner diameter

Shank
Diameter

Rim
Thickness

Total
Length

Drilling
Depth

Quantity

9.5mm (3/8 in)

9.5mm

8.3

6-7.5

0.5

50

23

5 Pieces

10mm (bigger than 3/8 in)

10mm

8.8

6-7.5

0.5

50

23

5 Pieces

10.5mm (13/32 in)

10.5mm

9.3

6-7.5

0.5

50

23

5 Pieces

11mm (7/16 in)

11mm

9.5

6-7.5

0.5

50

23

5 Pieces

11.5mm (29/64 in)

11.5mm

10

6-7.5

0.5

50

23

5 Pieces

12mm (15/32 in)

12mm

10.5

6-7.5

0.5

50

23

5 Pieces

12.5mm (less than 1/2 in)

12.5mm

11

6-7.5

0.5

50

23

5 Pieces

13mm (bigger than 1/2 in)

13mm

11.5

6-7.5

0.5

50

23

5 Pieces

13.5mm (17/32 in)

13.5mm

12

6-7.5

0.5

50

23

5 Pieces

14mm (less than 9/16 in)

14mm

12.5

6-7.5

0.5

50

23

5 Pieces

14.5mm (bigger than 9/16 in)

14.5mm

13

6-7.5

0.5

50

23

5 Pieces

15mm (19/32 in)

15mm

13.5

6-7.5

0.5

50

23

5 Pieces

15.5mm (39/64 in)

15.5mm

14

6-7.5

0.5

50

23

5 Pieces

16mm (5/8 in)

16mm

14.5

6-7.5

0.6

50

23

5 Pieces

16.5mm (21/32 in)

16.5mm

15

6-7.5

0.6

50

23

5 Pieces

17mm (43/64 in)

17mm

15.5

6-7.5

0.6

50

23

5 Pieces

17.5mm (11/16 in)

17.5mm

16

6-7.5

0.6

50

23

5 Pieces

18mm (less than 23/32 in)

18mm

16.5

6-7.9

0.6

52

24

5 Pieces

18.5mm (bigger than 23/32 in)

18.5mm

17

6-7.9

0.6

52

24

5 Pieces

19mm (close to 3/4 in)

19mm

17.5

6-7.9

0.6

52

24

5 Pieces

19.5mm (bigger than 3/4 in)

19.5mm

18

6-7.9

0.6

52

24

5 Pieces

20mm (bigger than 3/4 in)

20mm

18.5

6-7.9

0.6

52

24

5 Pieces

20.5mm (25/32 in)

20.5mm

19

6-7.9

0.6

52

24

5 Pieces

21mm (13/16 in)

21mm

19.5

8-8.5

0.6

52

24

5 Pieces

21.5mm (27/32 in)

21.5mm

20

8-8.5

0.6

52

24

5 Pieces

22mm (7/8 in)

22mm

20.5

8-8.5

0.6

52

24

5 Pieces

22.5mm(bigger than 7/8 in)

22.5mm

21

8-8.5

0.6

52

24

5 Pieces

23mm (29/32 in)

23mm

21.5

8-8.5

0.6

52

24

5 Pieces

23.5mm (15/16 in)

23.5mm

22

8-8.5

0.6

52

24

5 Pieces

24mm (bigger than  15/16 in)

24mm

22.5

8-8.5

0.6

52

24

5 Pieces

24.5mm (31/32 in)

24.5mm

23

8-8.5

0.6

52

24

5 Pieces

25mm (less than 1 in)

25mm

23.5

8-8.5

0.6

52

24

5 Pieces

25.5mm (bigger than 1 in)

25.5mm

24

8-8.5

0.6

52

24

5 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 so on precious materials. Especially suitable for use on hard lapidary materials like 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 Worldwide and takes 10-30 days delivery to your home
We will send out your order within 1-2 days after payment has been received and cleared.