Model # 1821

Internet #202531334

Bosch 5 in. Rat Tail Grinder


5 in. Rat Tail Grinder

  • Works with PRO+GUARD system for OSHA Silica Table 1 compliance
  • 2-Position Vibration Control Handle reduces vibration up to 60%
  • Ideal for metal grinding
$13280 /each
store icon Loading Buying Options...
package icon Loading Buying Options...
Sorry, but we ran into issues loading these options. Please try refreshing.

Frequently Bought Together

Product Overview

The Bosch 1821 5 in. RAT Tail Grinder is Powerful & Durable for the most demanding jobs/compact and lightweight for all day use . 2-Position Vibration Control Handle reduces vibration up to 60%, providing uncompromising user comfort for extended periods of work. Rear Handle Trigger with lock-on/off switch for extended use applications. Epoxy Coated Field Windings provides the ultimate protection against abrasive dust and metal debris.

  • Sealed switch keeps debris out of the switch mechanism and extends switch life
  • Service Minder brushes eliminates guesswork, stops the tool when preventative maintenance is required
  • Tool free adjustable guard for quick guard installation and adjustments
  • AC/DC capability extends the versatility of the tool by working from DC outlets such as welders and generators

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents.  Download a free copy from the Adobe Web site.



Product Depth (in.)
16.75 in
Product Height (in.)
5.25 in
Product Width (in.)
5 in
Wheel Diameter (in.)
5 in


Amperage (amps)
Arbor Size
5/8 -11 UNC
Color Family
Cord Length (ft.)
Corded Tool Type
Angle Grinder
Cordless/ Corded
Electronic Speed Control
Grinding Wheel Included
Maximum Speed (rpm)
Power Tool Features
Second Handle Included
Product Weight (lb.)
Spindle Lock
Tools Product Type
Power Tool
Variable Speed

Warranty / Certifications

Certifications and Listings
1-UL Listed,CSA Listed
Manufacturer Warranty
1 Year

More Products With These Features


Customer Questions & Answers

  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 61ms
  • bvseo-msg: The resource to the URL or file is currently unavailable.;

Customer Reviews

5 in. Rat Tail Grinder is rated 5.0 out of 5 by 5.
Rated 5 out of 5 by from great features easy to use, feels like a high quality tool. very effective for what I need in a tool of it's use
Date published: 2017-05-17
Rated 5 out of 5 by from Perfectly Balanced Goes all day long cleaning and prepping for welds and working with masonry,
Date published: 2016-01-19
Rated 5 out of 5 by from Very good and handy features ! I bought this about a month ago and have used it a few days for some heavy equipment repair/fabrication, welding jobs.I was very pleased with the power and ease of use.The safety guard is a bit hard to turn, but handy to adjust with the locking lever.I would rather have it tight than too loose! The power trigger works great and locks in the on position quite easily also. I am very pleased with Bosch power tools and am looking forward to purchasing their variable speed die grinder soon.
Date published: 2014-02-17
Rated 5 out of 5 by from light weight I buy this item 3 weeks ago so have a concrete surface attachment for it also and let me tell you  this is great. I grind 300 sf of 5000psi concerete at 3/8 thick and it does the job with out any problem I like the grinder its light weight great product thanks bosch another great produst well designed 
Date published: 2014-03-02
Rated 5 out of 5 by from Verry good!!! bought it 2 years ago. verry good tool and still working good! i recomended to anyone.
Date published: 2014-03-29
  • y_2017, m_7, d_16, h_22
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_5
  • loc_, sid_202531334, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 16ms