3M 28824 Mode D'emploi page 7

Type 27 Grinding Wheels are also known as Depressed Center Grinding Wheels. They have a dish shaped center to allow the lower mounting hardware or fl ange to be
recessed into the wheel. This allows the wheel to be used in a nearly fl at orientation when needed.
Refer to ANSI B7.1-2000 Safety Requirements for Use, Care and Protection of Abrasive Wheels and ISO/EN 12413 Safety Requirements for Bonded Abrasive Products for
proper abrasive wheel applications.
1/4" Grinding Wheel Type 27
Flap Wheel Type 27
Type 27 Wheel Mounting Hardware and Usage
4 1/2" Std. Guard
PN 54062
4 1/2" Std. Guard
PN 54062
Fibre disc mounted with Low
Profi le Disc Pad Hub PN 28476,
Disc Pad Face Plate PN 28443,
and Disc Retainer Nut PN 02618
Quick Change Flap Wheel
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4 1/2" Std. Guard
PN 54062
4 1/2" Jumbo
Guard
PN 54065