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Diamond & CBN Burrs（Shape：Cylindrical）

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.

19 items

: 30; 45; 60

Days to Ship	All Same day 7 Days or Less 8 Days or Less 9 Days or Less 10 Days or Less 11 Days or Less 12 Days or Less 13 Days or Less 14 Days or Less 15 Days or Less

On Sale Till 07/03/2025

Electroplated Diamond Bar (φ3 Steel Shank)

MISUMI

Introducing a discount set of the popular electroplated diamond bar (C-Value)

Volume Discount

	Special Price
Days to Ship:	Same day or more

Show Stock Products

Electroplated Diamond and CBN Rods - For polishing of ultra small internal diameters.

NAKANISHI

[Features]
· Ideal for drilling extremely small diameter holes and conducting inner surface grinding and jig grinding.
· The carefully selected abrasive grains are held firmly by the latest electrodeposition technology.
· Uses a high hardness dedicated shaft, with high rigidity that achieves high precision machining.
· Suitable for hardened steel material (SKH/SKD/SKS/SCM, heat-resistant alloy).
[Applications]
· Grinding of machine parts, electronic parts, precision parts and molds.

Volume Discount
Days to Ship: 7 Days or more
Internal Grindstone with Shaft

MISUMI

Low chatter ensures high performance on hard materials

Volume Discount

Price Reduction
Days to Ship: 8 Days or more
New Products
Electroplated Diamond Bar (φ6 Steel Shank)

MISUMI

Introducing the extremely popular electroplated diamond bar with a φ6 shank (C-Value)

Volume Discount
Days to Ship: 8 Days or more
Electro-Deposited Diamond Bar

YANASE

A wide variety of abrasive grain shapes (diamond and CBN) are available.

[Features]
· A wide variety of abrasive grain shapes (diamond and CBN) are available.

Volume Discount
Days to Ship: 8 Days or more
Internally Mounted Grindstone Jig for Grinding Electrodeposition Type

DIACRYSTON

•Model: Single Item
•Shape: Cylindrical
•Classification: Internal Grindstone

Volume Discount
Days to Ship: 8 Days or more
Electrodeposited Diamond and CBN Bar for Ultra Small Diameter Internal Polishing

NAKANISHI

[Features]
· Ideal for drilling extremely small diameter holes and conducting inner surface grinding and jig grinding.
· The carefully selected abrasive grains are held firmly by the latest electrodeposition technology.
· Uses a high hardness dedicated shaft, with high rigidity that achieves high precision machining.
[Applications]
· Grinding of machine parts, electronic parts, precision parts and molds.
· Suitable for hard and brittle materials (carbide alloy, ceramics, glass, stone, silicon, etc.).

Volume Discount
Days to Ship: 8 Days or more
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.

Volume Discount
Days to Ship: 8 Days or more
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.

Volume Discount
Days to Ship: 8 Days or more
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.

Volume Discount
Days to Ship: 8 Days or more
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.

Volume Discount
Days to Ship: 9 Days or more
Diamond Bar

Trusco Nakayama

[Features]
· Natural diamonds with good shapes are carefully selected and used. Proprietary electrodeposition technology is employed for unfaltering fixture of diamond particles to provide exceptionally long service life.
· Although it can be used dry, grinding fluid can be used to improve accuracy, finish, sharpness and life.

Volume Discount
Days to Ship: 8 Days or more
CBN Bar

Trusco Nakayama

[Features]
· Ideal for machining ferrous metals.
· As it has micro crushing power (autogenous action), stable processed surfaces can be produced.
· Heat resistance is better than diamond at about 1,400°C.

Volume Discount
Days to Ship: 8 Days or more
Diamond Bar with Electrodeposition (φ3 Steel Shank)【10 Pieces Per Package】

HONGIA

•Abrasive Material: Diamond
•Shaft Diameter (mm): 3
•Classification: Electroplated Burr
•Overall Length (mm): 45

Volume Discount
Days to Ship: 10 Days or more
Electrocoated Diamond Bar Shaft Diameter 3 mm

MINITOR

[Features]
· Large diamond abrasive grain protrusions for excellent sharpness.
· Ideal for rough grinding when a finish surface roughness is not required.
[Applications]
· Applicable Materials: Ceramics, Glass, Tool Steel, Alloy Steel, Cemented Carbide, Cermet

Volume Discount
Days to Ship: 8 Days or more
Super Diamond Grindstone

MINITOR

[Features]
· Diamond abrasive grains are distributed in all molded layers and provide long service life.
· Ideal for cutting at will, such as when using a hand grinder.
[Applications]
· Applicable Materials: Ceramics, Glass, Tool Steel, Alloy Steel, Cemented Carbide, Cermet

Volume Discount
Days to Ship: 8 Days or more
FR Diamond Grindstone

MINITOR

[Features]
· Diamond abrasive grains are distributed in all molded layers and provide long service life.
· The moderate elasticity of the resin binding agent provides a uniform finish without deep scratches.
[Applications]
· Applicable Materials: Ceramics, Glass, Tool Steel, Alloy Steel, Cemented Carbide, Cermet

Volume Discount
Days to Ship: 7 Days or more
Electro-Deposited CBN Bar

MINITOR

[Features]
· Large CBN abrasive grain protrusions for excellent sharpness.
· Ideal for rough grinding when a finish surface roughness is not required.
[Applications]
· Applicable Materials: Tool Steel, Alloy Steel, General Steel, Stainless Steel

Volume Discount
Days to Ship: 7 Days or more
Precision Electrodeposited Diamond Bar

MINITOR

[Features]
· An electrodeposited diamond bar which has a high-rigidity carbide shaft with a runout accuracy of 5 μm or less.
· High accuracy and cutting depth during machining prevent problems with axial clearance, drastically improving machining accuracy and efficiency.
[Applications]
· Applicable Materials: Ceramics, Glass, Tool Steel, Alloy Steel, Cemented Carbide, Cermet

Volume Discount
Days to Ship: 8 Days or more

Days to Ship:	7 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	9 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	10 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	7 Days or more

Days to Ship:	7 Days or more

Days to Ship:	8 Days or more


Brand
Product Series
Days to Ship
Classification
Model
Particle Size(#)
Shape
Material / Abrasive
Diamond Part Maximum Diameter(mm)
Diamond Length / Grindstone Length(mm)
Shaft Diameter(mm)

	On Sale Till 07/03/2025		Price Reduction	New Products
Brand	MISUMI	NAKANISHI	MISUMI	MISUMI	YANASE	DIACRYSTON	NAKANISHI	Trusco Nakayama	Trusco Nakayama	Trusco Nakayama	Trusco Nakayama	Trusco Nakayama	Trusco Nakayama	HONGIA	MINITOR	MINITOR	MINITOR	MINITOR	MINITOR
Product Series	Electroplated Diamond Bar (φ3 Steel Shank)	Electroplated Diamond and CBN Rods - For polishing of ultra small internal diameters.	Internal Grindstone with Shaft	Electroplated Diamond Bar (φ6 Steel Shank)	Electro-Deposited Diamond Bar	Internally Mounted Grindstone Jig for Grinding Electrodeposition Type	Electrodeposited Diamond and CBN Bar for Ultra Small Diameter Internal Polishing	Borazon Internal Bar	Diamond Internal Bar	Internal Bar 5-Piece Set (Borazone)【5 Pieces Per Package】	High End Black Bar #230	Diamond Bar	CBN Bar	Diamond Bar with Electrodeposition (φ3 Steel Shank)【10 Pieces Per Package】	Electrocoated Diamond Bar Shaft Diameter 3 mm	Super Diamond Grindstone	FR Diamond Grindstone	Electro-Deposited CBN Bar	Precision Electrodeposited Diamond Bar
Days to Ship	Same day or more Show Stock Products	7 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	9 Days or more	8 Days or more	8 Days or more	10 Days or more	8 Days or more	8 Days or more	7 Days or more	7 Days or more	8 Days or more
Classification	Electroplated Burr	Electroplated Burr	Internal Grindstone	Electroplated Burr	Electroplated Burr	Internal Grindstone	Electroplated Burr	Internal Grindstone	Internal Grindstone	Internal Grindstone	Internal Grindstone	Electroplated Burr	-	Electroplated Burr	-	-	-	-	-
Model	Single Item	Single Item	Single Item	Single Item	Single Item	Single Item	Single Item	Single Item	Diamond Disc Mandrel	Set Product	Single Item	Single Item	Single Item	Single Item	-	-	-	-	-
Particle Size(#)	100 ～ 200	120 ～ 1000	120 ～ 800	100	140	150 ～ 400	140 ～ 1000	120 ～ 325	120 ～ 325	-	230	100 ～ 200	140	120 ～ 140	120 ～ 600	120 ～ 200	120 ～ 220	140 ～ 600	230 ～ 1000
Shape	Cylindrical	Cylindrical	Cylindrical	Cylindrical	Cylindrical	Cylindrical	Cylindrical	Cylindrical	Cylindrical	Cylindrical	Cylindrical	Cylindrical	Cylindrical	Cylindrical	Cylindrical	Cylindrical	Cylindrical	Cylindrical	Cylindrical
Material / Abrasive	Diamond	CBN	CBN / Diamond	Diamond	CBN / Diamond	CBN / Diamond	Diamond	CBN	Diamond	Diamond	CBN / Diamond	Diamond	CBN	Diamond	-	-	-	-	-
Diamond Part Maximum Diameter(mm)	1 ～ 6	-	0.3 ～ 15	6.5 ～ 18	1 ～ 10	0.3 ～ 20	-	-	-	-	-	-	-	1 ～ 5	0.3 ～ 6	4 ～ 6	4 ～ 8	0.3 ～ 5.5	0.1 ～ 0.9
Diamond Length / Grindstone Length(mm)	8 ～ 10	-	2 ～ 10	10 ～ 32	8 ～ 19	2 ～ 10	-	-	-	-	-	-	-	8 ～ 10	-	-	-	-	-
Shaft Diameter(mm)	3	3	-	6	3 ～ 6	3 ～ 10	3	3	3	-	3	1.6 ～ 6	3	3	3	3	3	3	3

Configure

Stock

- Show Stock Products
Clear

Specification/Dimensions

Classification
- Electroplated Burr
- Internal Grindstone
Clear

Model
- Single Item
- Set Product
- Diamond Disc Mandrel
Clear

Metric / Inch
- metric
Clear

Particle Size(#)
80

100

120

130

140

140/170

150

200

220

230

240

270

320

325

400

600

800

1000
Clear

Shape
- Abacus Type
- Taper Type
- Taper Round Tip
- Sharp Point
- Sharp Round Point Type
- Cylindrical
- Reverse Tapered
- Spherical
- Elliptic Model
- Flat
- Bullet-shaped
- Tapered Shell
- Taper Flat Point
- Conical round tip
Clear

Material / Abrasive
- CBN
- Diamond
Clear

Diamond Part Maximum Diameter(mm)
0.1

0.2

0.3

0.4

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

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3

3.3

3.4

3.5

4

4.5

4.7

4.8

5

5.5

6

6.5

7

7.5

8

8.5

9

9.5

9.7

10

11

12

13

14

15

16

16.5

17

18

19

20

21

25
Clear

Diamond Length / Grindstone Length(mm)
1

1.2

1.5

1.6

2

2.5

3

4

5

5.2

6

7

7.24

8

9

10

11.2

12

13

14

15

16

17

18

19

20

21

22

25

26

32

38

40

45

48
Clear

Shaft Diameter(mm)
1.6

2.34

2.35

3

6

φ6.0

10
Clear

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- MISUMI (3)
- C-Value ()
- Trusco Nakayama (6)
- MINITOR (5)
- NAKANISHI (2)
- DIACRYSTON (1)
- HONGIA (1)
- YANASE (1)
- PFERD (0)
Clear

CAD

- 2D
- 3D
Clear

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Diamond & CBN Burrs（Shape：Cylindrical）

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About This Website

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Contact us Monday to Friday: 8:00 am to 6:00 pm (Mexico City time)