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  6. 3M™ Grinder 28403, T27, 4 in, 3/8-24 EXT, 1 hp, 12,000 RPM, 1 per case

3M™ Grinder 28403, T27, 4 in, 3/8-24 EXT, 1 hp, 12,000 RPM, 1 per case

3M ID 7100142462UPC 00051141284033
  • 3M™ Gripping Material helps reduce vibration and enhance operator comfort
  • Steel guard may be repositioned for better visibility
  • Side handle may be removed or repositioned to accommodate right-hand or left-hand use
  • Exhaust systems direct exhaust air away from workpiece and operator for reduced surface contamination and optimal operator comfort and safety
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For industrial/occupational use only. Not for consumer sale or use.
Specifications
Attribute Name
Value
Air Inlet Thread
3/8 in NPT
Application
Surface Finishing
Brand
3M™
Equipment Type
Grinder
Industries
Aerospace, AOEM, Composite, General Industrial, Metalworking, MRO, Transportation & Heavy Equipment, Woodworking
Maximum Speed
12000 rpm
Motor HP (W)
1 (744)
Net Weight (Imperial)
4.01 lb
Net Weight (Metric)
1.82 kg
Overall Diameter (Imperial)
4 in
Overall Diameter (Metric)
101.6 mm
Overall Height (Imperial)
4.63 in
Overall Height (Metric)
11.75 cm
Overall Length (Imperial)
12.5 in
Overall Length (Metric)
31.75 cm
Overall Width (Imperial)
7.44 in
Overall Width (Metric)
18.9 cm
Power Source
Pneumatic
Power Type
Pneumatic
Primary Application
Grinding
Product Form
Power Tool
Product Type
Right Angle Grinder
Thread Size
3/8-24 EXT
Tool Diameter
100 in
Tool Diameter (Metric)
100 mm
Weight Pound (kg)
4.01 (1.82)
Product Details
  • 3M™ Gripping Material helps reduce vibration and enhance operator comfort
  • Steel guard may be repositioned for better visibility
  • Side handle may be removed or repositioned to accommodate right-hand or left-hand use
  • Exhaust systems direct exhaust air away from workpiece and operator for reduced surface contamination and optimal operator comfort and safety

Having the right tool system for the job is an essential part of any application. We engineered our 3M™ Grinders to power abrasives and accessories — making your cutting, grinding, blending or finishing jobs fast, easy and efficient.

Our 3M™ Grinders are pneumatically powered with a reliable, high output motors —  available in 1 HP and 1.5 HP. High output motors allow operators to apply significant pressure without interrupting tool performance, which results in the work getting done faster.
Balancing Power and Comfort
Our 3M™ Grinders are pneumatically powered with a reliable, high output motors — available in 1 HP and 1.5 HP. High output motors allow operators to apply significant pressure without interrupting tool performance, which results in the work getting done faster. 3M™ Gripping Material enables a firmer hold on the tool, minimizes vibration, and insulates the operator from possible hot or cold touch temperatures. Altogether, these characteristics enhance operator comfort and control and make these lightweight, powerful tools a user-friendly option for tackling tough metalworking applications. A removable and repositionable side handle means operators can run the grinder right or left handed.

Grinder Variations
3M™ Grinders are available in a few variations. 4" grinders with a 3/8 - 24" EXT thread are commonly used in ship-building and other applications that require smaller abrasives. They're great for weld leveling and blending, metal preparation and plasma cut clean-up. 4-1/2" grinders with a 5/8 - 11" EXT thread are great for metal fabrication applications including grinding, blending, weld leveling, metal prep and pipe notching. Both grinders are offered in standard or extended lengths. Typically, extended versions are ideal for hard-to-reach areas, and the addition of a second grip places the operator's hand further from the grinding area for safer operation.

Use with Type 27 Abrasives
We engineered the 3M™ Grinders to be used with Type 27 wheels or discs, which have a depressed center. A depressed center enables the flange to sink into the abrasive, so the abrasive may be used for grinding and cutting applications and not risk marring or gouging the workpiece. The accompanying steel guard on the grinder has an open face and can be re-positioned for greater visibility of the work area. Some Type 27 abrasives will have a threaded hub that mounts directly to the grinder, while other Type 27 abrasives require flanges to mount to the tool. For optimal safety, operators should always read and follow manual safety instructions and ensure the tool's operating speed does not exceed the maximum RPM imprinted on the tool.

Altogether, the 3M™ Grinders are powerful and reliable, designed to help you tackle your toughest metalworking applications.

Learn more about 3M™ Metalworking Tools. (PDF, 802.68 Kb)

Large Volume Order

If you are considering a large purchase of this or other 3M Abrasive products our inside sales team is ready to help by providing additional information and options that our industrial customers typically seek when making abrasive procurement decisions. Our technical expertise, customer support, and global capabilities put us in a unique position to address your biggest challenges, and we’ll do our best to prove that we should be your abrasive supplier of choice.


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For industrial/occupational use only. Not for consumer sale or use.

3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.