All machines that use coated abrasive products can be dangerous and cause serious injury if not properly used and safety procedures not followed. Although maximum speeds are provided for each product, it is highly recommended that you use speeds recommended by the power tool manufacturer. Do not use sizes other than those for which the power tool is designed for! Coated abrasives deliver best performance when used in normal room temperature and humidity. Excessive temperature and humidity can cause coated abrasives to fail. Use extra caution when grinding at extremely cold or hot conditions.

Safety Instructions

  • Eye protection must be worn by all operators and other personnel in the grinding area
  • Wear a dust and fumes mask
  • Do not exceed maximum operating speeds
  • Store abrasives under the manufacturer’s recommendation conditions
  • Make sure that you are using proper abrasive tools for your application
  • Never modify abrasive tools from its original form
  • Keep all safety guards in place
  • Read all instructions provided by the manufacturer before operating
  • Observe and follow safety instructions for the intended work area
  • Safe use of abrasives requires strict adherence to the guidelines set in ANSI standard Z87.1 “Occupational Eye and Face Protection”

Mandatory Pictograms

face_grinding Use for face grinding back_up_pad_required Only permitted with back-up pad
eye_protection Wear eye protection. Minimum protection level of EN 166 Grade B recommended. ear_protection Wear ear protection complying with EN 352 recommended for all applications where the workpiece or machine is hand-held, irrespective of the noise level.
dust_mask Wear a dust mask complying with EN149 recommended for dry grinding processes even if extraction systems are provided read_instructions Read the instructions
wear_gloves Wear gloves. Minimum protection level of EN 388 Category 2 recommended. face shield Use face shield
wear_apron Wear an apron

Prohibition Pictograms

not_for_wet_grinding Not suitable for wet grinding not_for_hand_held_machines Not permitted for hand-held and manually guided grinding
not_for_face_grinding Not permitted for face grinding do_not_use_if_damaged Do not use if damaged

Operating Instructions

  • Read safety instructions before using flap discs
  • Allow tools to reach operating speed before you start grinding
  • For best results, grind at an angle recommended for the type of disc that you are using
  • More grinding pressure results in aggressive grinding while less pressure produces a smother finish
  • Do not use excessive pressure when grinding
  • Using grinding angles greater than which is recommended and/or grinding corners can cause premature and uneven wear of the flaps
  • When grinding keep the power tool in motion for best results

Maximum Operating Speeds

All the abrasive discs are supposed to be used at the maximum speed shown on the labels and packaging. The color of the central stripe changes according to the maximum peripheral speed allowed. Blue (50 m/s), Yellow (63 m/s), Red (80 m/s), Green (100 m/s). The maximum speed is shown both in rpm and m/s. Never exceed the speed shown on the label.

OUTSIDE DIAMETER (inch)MAX. RPM at 50 (m/s)MAX. RPM at 63 (m/s)MAX. RPM at 80 (m/s)MAX. RPM at 100 (m/s)
4 1/2"8,35010,50013,30016,650

ANSI American National Standards Institute

ANSI B7.1-2010

Safety Requirements for the Use, Care and Protection of Abrasive Wheels

AS Australian Standards

AS 1788.1-1987

Abrasive wheels – Design, construction, and safeguarding

AS 1788.2-1987

Abrasive wheels – Selection, care, and use

DI European Directives

DI 85/374/EEC 25/07/1985

The Product Liability Directive defines a regime of strict liability for defective products.

DI 92/58/EEC 24/06/1992

This directive lays down minimum requirements for the provision of safety and/or health sign at work.

DI 95/16/EC 29/06/1995

Permits the free circulation of lifts and its safety components within the internal EU market and ensures a high level of safety for lift users and maintenance staff.

DI 98/37/EC 22/06/1998

Harmonises the design and construction of machinery with the aim of protecting the safety of workers using such machinery.

DI 2001/95/EC 03/12/2001

Applies in the absence of specific European regulations, governing the safety of certain categories of products or if specific regulations (sectoral) are insufficient. Furthermore, it is to be applied without prejudice to Directive 85/374/EEC concerning liability for defective products.

DI 2006/42/EC 17/05/2006

Provides the regulatory basis for the harmonisation of the essential health and safety requirements for machinery at European Union level. Replaces the Machinery Directive 98/37/EC.

DIN Deutsches Institut für Normung

DIN 332

60° centre holes – types R, A, B and C

DIN 6527

Solid hardmetal end mills with stepped parallel shank – Dimensions

DIN 8033

Hardmetal burrs – technical requirements

EN European Norms

EN 149

Respiratory protective devices – Filtering half masks to protect against particles – Requirements, testing, marking

EN 166

Personal eye-protection – Specifications

EN 352

Hearing protectors

EN 388

Protective gloves against mechanical risks

EN 458

Hearing protectors – Recommendations for selection, use, care and maintenance – Guidance document

EN 792

Hand-held non-electric power tools – Safety requirements

EN 12413

Safety requirements for bonded abrasive products

EN 13218

Machine tools – Safety – Stationary grinding machines

EN 13236

Safety requirements for superabrasive products

EN 13674

Railway applications – Track – Rail – Part 1 : vignole railway rails 46 kg/m and above

EN 13743

Safety requirements for coated abrasive products

EN 60745

Hand-held motor operated electric tools – Safety – Part 2-3 : particular requirements for grinders, polishers and disk-type sanders

EN 61029

Safety of transportable motor-operated electric tools

EN ISO European Norms ISO International Standards

EN ISO 6103

Bonded abrasive products – Permissible unbalances of grinding wheels as delivered – Static testing

EN ISO 7010

Graphical symbols – Safety colours and safety signs – Registered safety signs

EN ISO 11611

Protective clothing for use in welding and allied processes

EN ISO 11612

Protective clothing – Clothing to protect against heat and flame

EN ISO 19432

Building construction machinery and equipment – Portable, hand-held, internal combustion engine driven cut-off machines – Safety requirements

EN ISO 20345

Personal protective equipment – Safety footwear

ISO International Standards

ISO 525

Bonded abrasive products – General requirements

ISO 3864

Graphical symbols – Safety colours and safety signs – Part 2: Design principles for product safety labels

ISO 13942

Bonded abrasive products — Limit deviations and run-out tolerances