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Selection Guide Grinding Wheel Materials and Compounds

1. Abrasive Grains

Abrasive grains are particles of man-made abrasive

compounds. While some manufacturers use recycled

grains, Bosch abrasives use only high quality, virgin

grains that are made to our specifications. The

chemical structure of the grains determines the

physical properties of the grains (i.e., shape,

sharpness, hardness, friability). Common grain

types used in making bonded abrasives include:

A - Aluminum Oxide

- A tough, blocky

shaped grain used for cutting metals

and other high tensile strength materials

without excessive fracturing.

C - Silicon Carbide

- A very hard and very

sharp abrasive suited for non-metallic

materials such as concrete.

Z - Aluminum Zirconium

dense crystalline grain which can be

used for rugged stock removal.

SG - Seeded Gel

- A very fine, dense

crystalline grain which can be used

for rugged stock removal.

Bosch premium grade wheels are constructed of high quality abrasive grains, bonding coats and backings for metal, concrete,

masonry, pipeline, asphalt and stainless steel cutting. Easy–to–read labels are incorporated into the manufacturing process and

therefore remain intact throughout the life of the wheel. While some manufacturers use recycled grains, Bosch uses only superior

virgin grains made to exact specifications. Carefully formulated resinoid bonds are applied to meet the unique specifications of

each wheel. Multiple layers of long, stranded fiberglass are woven to form an exceptionally strong reinforcement layer specific to

the application.

Item #

Diameter

TCW1S400

4" x .040"

TCW1S450

4-1/2" x .040"

TCW1S500

5" x .040"

TCW1S6XT

6" x .040"

TCW1S600

6" x 1/16"

TCW1C400

4" x .045"

TCW1C450

4-1/2" x .045"

TCW1C500

5" x .045"

168

Boschtools.com

Whe e l s

Gr i nd i ng

2. Bonding Agent

The bonding agent that holds the grains together determines the resistance of the

wheel. Bosch abrasives use a resinoid bond that is formulated to meet the unique

specifications of each product.

3. Reinforcement

The reinforcement material provides extra strength to use the wheel at maximum

RPMs and withstand lateral pressure that is applied during use. Bosch uses multiple

layers of long, stranded fiberglass that are woven to form an exceptionally strong

reinforcement layer specific to the application.

- A very fine,

Combining the 3 Components

During the manufacturing process, these three components are combined to form a

grinding wheel. The grains and bonding agents are measured, combined and pressed

in an automated hydraulic press. Bosch abrasives labels are also incorporated into the

manufacturing process and therefore remain intact throughout the life of the wheel.

Grinding Wheels: Angle Grinders

Thin Cutting / Rapido Type 1A (ISO 41) Grinding Wheels

Rapido thin cutting wheels provide up to 50% less cutting time and require less force.

Excellent for vibration free cutting and no burring to avoid rework.

AS60INOX-BF – Aluminum oxide grain specially formulated for use with stainless steel,

60 grit grain size. Resin bond and fiberglass reinforcing.

AS46INOX-BF – Aluminum oxide grain specially formulated for use with stainless steel,

46 grit grain size. Resin bond and fiberglass reinforcing.

C60R-BF – Silicon carbide grain, 60 grit grain size, in the medium range on the bond

hardness scale. Resin bond and fiberglass reinforcing.

Arbor

Max. RPM

5/8"

7/8"

5/8"

7/8"

Toll Free: 877-BOSCH-99

Grit

15,250

AS60INOX-BF

13,280

AS60INOX-BF

12,200

AS60INOX-BF

10,200

AS60INOX-BF

10,200

AS46INOX-BF

15,250

C60R-BF

13,280

C60R-BF

12,200

C60R-BF

Application

Metal / stainless steel cutting

Concrete / masonry cutting