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DIA/CBN Bars（Classification：Internal Grindstone）

Diamond/carbon burs are rod-type abrasives used for grinding the inner surface of metals and nonferrous metals and removing burs. They are mainly used for the precision grinding of molds and other workpieces and finishing of welds. They are attached to precision grinders (micro grinders) to be used. Bar tips are available in various shapes, including cylinder shape, ball shape, bullet shape, flat shape and tapered shape, and it is important to choose a suitable type according to the application. Products with a hexagonal shaft can be used attached to an impact screwdriver. Carbon is second to diamond in hardness, and like diamond, it is used as a material for abrasive grains. Carbon is frequently used for stainless steel and other metal materials, and due to its excellent heat resistance, carbon is suitable for use under high temperatures.

Brand	(1) (0) AS ONE (0) CRYSTON DIAMOND INDUSTRY (1) HONGIA (0) MINITOR (0) NAKANISHI (0) PFERD (0) TRUSCO NAKAYAMA (5) YANASE (1)
CAD	2D 3D
Days to Ship	All Same day 5 Day(s) or Less 6 Day(s) or Less 7 Day(s) or Less 8 Day(s) or Less Others

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MISUMI, Shafted Internal Abrasive Stone HS-JGPC/HS-JGPD

MISUMI, Shafted Internal Abrasive Stone HS-JGPC/HS-JGPD

MISUMI, Shafted Internal Abrasive Stone HS-JGPC/HS-JGPD

MISUMI, Shafted Internal Abrasive Stone HS-JGPC/HS-JGPD

MISUMI

Suppresses chattering and exhibits strength in high-hardness materials.
[Shank Material]High stiffness, high-speed steel

From: ₹ 971.47
Days to Ship: 6 Day(s) or more

6 Day(s) or more

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Internally Mounted Grindstone Jig for Grinding Electrodeposition Type

Internally Mounted Grindstone Jig for Grinding Electrodeposition Type

Internally Mounted Grindstone Jig for Grinding Electrodeposition Type

Internally Mounted Grindstone Jig for Grinding Electrodeposition Type

Internally Mounted Grindstone Jig for Grinding Electrodeposition Type

CRYSTON DIAMOND INDUSTRY

For internal precision grinding. Diamond and CBN tools are available.

From: ₹ 985.00
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Borazon Internal Bar

Borazon Internal Bar

TRUSCO NAKAYAMA

[Features]
· Shank diameters of 3 mm.
· Knoop hardness is about 4,700 (second hardest material following diamonds) so CBN can be used just as diamond for most workpieces; however, it generates large amounts of heat especially during grinding, so it is best suited for metals containing carbon.
[Applications]
· Applicable workpiece materials: Carbon steel, tool steel alloy, high-speed tool steel, bearing steel, case hardened steel, hardened steel, stainless steel.

From: ₹ 856.64
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Diamond internal bar

Diamond internal bar

TRUSCO NAKAYAMA

[Features]
· Shank diameters of 3 mm.
· Knoop hardness is about 7,000 (the hardest material on earth) so it can be used for most workpieces such as metals, marble, glass, etc. Most suited for workpieces with high hardness such as ceramic materials. However, since diamond does not withstand heat, it is not suitable for machining that involves production of large amounts of heat (HSS, etc.).
[Applications]
· Applicable workpiece materials: Carbide alloy, glass, ceramic, rubber, plastic, stone, concrete, ferrite and other nonferrous metals.

From: ₹ 741.45
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Internal Bar 5-Piece Set (Borazone)

Internal Bar 5-Piece Set (Borazone)【5 Pieces Per Package】

TRUSCO NAKAYAMA

[Features]
· Borazon (CBN) is an abrasive grain that has hardness second to diamond. Suitable for iron based materials (stainless steel, SC, SK, SCM, etc.) for which diamond is not suitable.
· Also suitable in cases where sufficient cooling is not possible, as its heat-resistant temperature is higher than that of diamond.
[Applications]
· Applicable workpiece materials: Carbon steel, tool steel alloy, high-speed tool steel, bearing steel, case hardened steel, hardened steel, stainless steel.

From: ₹ 838.80
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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High End Black Bar #230

High End Black Bar #230

TRUSCO NAKAYAMA

[Features]
· For rough processing, deburring, and ridge removing.
· Special high-hardness stainless steel shank realizes firm operability and suppleness.
· Capable of precision machining thanks to the shank, which bends less.
· Machining time is significantly shortened as work can be done with high loads.

From: ₹ 1,464.73
Days to Ship: 6 Day(s) or more

6 Day(s) or more

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High End Black Bar #600

High End Black Bar #600

TRUSCO NAKAYAMA

[Features]
· For Precision Finishing.
· Special high-hardness stainless steel shank realizes firm operability and suppleness.
· Capable of precision machining thanks to the shank, which bends less.
· Machining time is significantly shortened as work can be done with high loads.

From: ₹ 1,523.65
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Electro-Deposited Precision Internal

Electro-Deposited Precision Internal

YANASE

[Features]
· The runout accuracy has been suppressed to make it suitable for polishing at points requiring machining accuracy, such as precision metal molds and precision components.

From: ₹ 1,394.05
Days to Ship: 10 Day(s) or more

10 Day(s) or more


Brand
Product Series
From
Days to Ship
Material/abrasive
Shaft Diameter(mm)
Particle Size(#)
Shape
Classification
Type
Diamond Maximum Diameter(mm)
Diamond Length/Grindstone Length(mm)

	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare
Brand	MISUMI	CRYSTON DIAMOND INDUSTRY	TRUSCO NAKAYAMA	TRUSCO NAKAYAMA	TRUSCO NAKAYAMA	TRUSCO NAKAYAMA	TRUSCO NAKAYAMA	YANASE
Product Series	MISUMI, Shafted Internal Abrasive Stone HS-JGPC/HS-JGPD	Internally Mounted Grindstone Jig for Grinding Electrodeposition Type	Borazon Internal Bar	Diamond internal bar	Internal Bar 5-Piece Set (Borazone)【5 Pieces Per Package】	High End Black Bar #230	High End Black Bar #600	Electro-Deposited Precision Internal
From	₹ 971.47	₹ 985.00	₹ 856.64	₹ 741.45	₹ 4,194.00	₹ 1,464.73	₹ 1,523.65	₹ 1,394.05
Days to Ship	6 Day(s) or more	5 Day(s) or more	5 Day(s) or more	5 Day(s) or more	5 Day(s) or more	6 Day(s) or more	5 Day(s) or more	10 Day(s) or more
Material/abrasive	CBN / Diamond	CBN / Diamond	CBN	Diamond	Diamond	CBN / Diamond	Diamond	Diamond
Shaft Diameter(mm)	-	3 ～ 10	3	3	-	3	3	3
Particle Size(#)	120 ～ 800	150 ～ 400	120 ～ 325	120 ～ 325	-	230	600	200
Shape	Cylinder Type	Cylinder Type	Cylinder Type	Cylinder Type	Cylinder Type	Cylinder Type	Cylinder Type	-
Classification	Internal Grindstone	Internal Grindstone	Internal Grindstone	Internal Grindstone	Internal Grindstone	Internal Grindstone	Internal Grindstone	Internal Grindstone
Type	Single Item	Single Item	Single Item	Diamond Disk, Mandrel	Set Product	Single Item	Single Item	Single Item
Diamond Maximum Diameter(mm)	0.3 ～ 15	0.3 ～ 20	-	-	-	-	-	0.8
Diamond Length/Grindstone Length(mm)	2 ～ 10	2 ～ 10	-	-	-	-	-	5

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1

Configure

Specification/Dimensions

Material/abrasive
- CBN
- Diamond
Clear

Shaft Diameter(mm)
1.6

2.34

⌀2.34

2.35

3

6

10
Clear

Particle Size(#)
1,000

80

100

120

130

140

140/170

150

170

200

220

230

240

270

280

320

325

400

600

800

1000
Clear

Shape
- Abacus Type
- Taper type
- Tapered, round tip
- Tongari Type
- Tongari Rounded End Type
- Cylinder Type
- Reverse Taper Type
- Spherical
- Oval
- Flat
- Shell type
- Shell taper
- Tapered, flat tip
- Cylindrical round tip
- Conical obtuse-angled tip
Clear

Classification
- Electrodeposition bar
- Internal Grindstone
Clear

Type
- Single Item
- Set Product
- Diamond Disk, Mandrel
Clear

Diamond Maximum Diameter(mm)
0.2

0.3

0.4

0.5

⌀0.5

0.6

0.7

0.8

0.9

1

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

2

2.2

2.3

2.4

2.5

2.6

2.8

3

3.3

3.4

3.5

4

4.5

4.8

5

5.5

6

6.5

7

7.5

8

8.5

9

9.5

10

11

12

13

14

15

16

16.5

17

18

19

20

21

22

25

30

45

-
Clear

Diamond Length/Grindstone Length(mm)
0.18

0.3

0.33

0.4

0.5

0.6

0.7

0.8

1

1.5

2

2.5

3

3.5

4

5

5.2

6

7

7.24

8

9

10

11.2

12

13

14

15

16

17

18

19

20

21

25

26

32

38

40

45

48
Clear

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