DIA/CBN Bars（Classification：Internal Grindstone）

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  Internally Mounted Grindstone Jig for Grinding Electrodeposition Type

  CRYSTON DIAMOND INDUSTRY

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

  Material/abrasive	Shaft Diameter(mm)	Particle Size(#)	Shape	Classification	Type	Diamond Maximum Diameter(mm)	Diamond Length/Grindstone Length(mm)
  CBN / Diamond	3 ～ 10	150 ～ 400	Cylinder Type	Internal Grindstone	Single Item	0.3 ～ 20	2 ～ 10

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

  5 Day(s) or more

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  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.

  Material/abrasive	Shaft Diameter(mm)	Particle Size(#)	Shape	Classification	Type	Diamond Maximum Diameter(mm)	Diamond Length/Grindstone Length(mm)
  CBN	3	120 ～ 325	Cylinder Type	Internal Grindstone	Single Item	-	-

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

  5 Day(s) or more

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  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

  Material/abrasive	Shaft Diameter(mm)	Particle Size(#)	Shape	Classification	Type	Diamond Maximum Diameter(mm)	Diamond Length/Grindstone Length(mm)
  CBN / Diamond	-	120 ～ 800	Cylinder Type	Internal Grindstone	Single Item	0.3 ～ 15	2 ～ 10

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

  6 Day(s) or more

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  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.

  Material/abrasive	Shaft Diameter(mm)	Particle Size(#)	Shape	Classification	Type	Diamond Maximum Diameter(mm)	Diamond Length/Grindstone Length(mm)
  Diamond	3	120 ～ 325	Cylinder Type	Internal Grindstone	Diamond Disk, Mandrel	-	-

  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)【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.

  Material/abrasive	Shaft Diameter(mm)	Particle Size(#)	Shape	Classification	Type	Diamond Maximum Diameter(mm)	Diamond Length/Grindstone Length(mm)
  Diamond	-	-	Cylinder Type	Internal Grindstone	Set Product	-	-

  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

  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.

  Material/abrasive	Shaft Diameter(mm)	Particle Size(#)	Shape	Classification	Type	Diamond Maximum Diameter(mm)	Diamond Length/Grindstone Length(mm)
  CBN / Diamond	3	230	Cylinder Type	Internal Grindstone	Single Item	-	-

  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 #325

  TRUSCO NAKAYAMA

  [Features]
  · For finishing, chamfering.
  · 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.

  Material/abrasive	Shaft Diameter(mm)	Particle Size(#)	Shape	Classification	Type	Diamond Maximum Diameter(mm)	Diamond Length/Grindstone Length(mm)
  CBN / Diamond	3	325	Cylinder Type	Internal Grindstone	Single Item	-	-

  From: ₹ 1,478.11
  Days to Ship: 5 Day(s) or more

  5 Day(s) or more

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  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.

  Material/abrasive	Shaft Diameter(mm)	Particle Size(#)	Shape	Classification	Type	Diamond Maximum Diameter(mm)	Diamond Length/Grindstone Length(mm)
  Diamond	3	600	Cylinder Type	Internal Grindstone	Single Item	-	-

  From: ₹ 1,499.55
  Days to Ship: 5 Day(s) or more

  5 Day(s) or more

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  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.
  

  Material/abrasive	Shaft Diameter(mm)	Particle Size(#)	Shape	Classification	Type	Diamond Maximum Diameter(mm)	Diamond Length/Grindstone Length(mm)
  CBN / Diamond	3 ～ 6	140 ～ 1000	-	Internal Grindstone	Single Item	0.1 ～ 10	1 ～ 10

  From: ₹ 1,394.05
  Days to Ship: 5 Day(s) or more

  5 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)

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Brand	CRYSTON DIAMOND INDUSTRY	TRUSCO NAKAYAMA	MISUMI	TRUSCO NAKAYAMA	TRUSCO NAKAYAMA	TRUSCO NAKAYAMA	TRUSCO NAKAYAMA	TRUSCO NAKAYAMA	YANASE
Product Series	Internally Mounted Grindstone Jig for Grinding Electrodeposition Type	Borazon Internal Bar	MISUMI, Shafted Internal Abrasive Stone HS-JGPC/HS-JGPD	Diamond internal bar	Internal Bar 5-Piece Set (Borazone)【5 Pieces Per Package】	High End Black Bar #230	High End Black Bar #325	High End Black Bar #600	Electro-Deposited Precision Internal
From	₹ 985.00	₹ 856.64	₹ 971.47	₹ 741.45	₹ 4,194.00	₹ 1,464.73	₹ 1,478.11	₹ 1,499.55	₹ 1,394.05
Days to Ship	5 Day(s) or more	5 Day(s) or more	6 Day(s) or more	5 Day(s) or more	5 Day(s) or more	6 Day(s) or more	5 Day(s) or more	5 Day(s) or more	5 Day(s) or more
Material/abrasive	CBN / Diamond	CBN	CBN / Diamond	Diamond	Diamond	CBN / Diamond	CBN / Diamond	Diamond	CBN / Diamond
Shaft Diameter(mm)	3 ～ 10	3	-	3	-	3	3	3	3 ～ 6
Particle Size(#)	150 ～ 400	120 ～ 325	120 ～ 800	120 ～ 325	-	230	325	600	140 ～ 1000
Shape	Cylinder Type	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	Internal Grindstone
Type	Single Item	Single Item	Single Item	Diamond Disk, Mandrel	Set Product	Single Item	Single Item	Single Item	Single Item
Diamond Maximum Diameter(mm)	0.3 ～ 20	-	0.3 ～ 15	-	-	-	-	-	0.1 ～ 10
Diamond Length/Grindstone Length(mm)	2 ～ 10	-	2 ～ 10	-	-	-	-	-	1 ～ 10

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