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BT 6321-12 | 12" Extra Long Extension 1/4“ Straight Air Die Grinder, Professional Grade Heavy Duty Variable High Speed (Straight, 12" Extension)

  • Based on 196 reviews
Condition: New
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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Nov 25
Order within 11 hours and 35 minutes
Available payment plans shown during checkout

Material Type: Composite and Aluminum


Size: 12" Extension


Features

  • PRECS WHERE T MTTERS: Dive into precision with the BT 6321-12! This powerhouse of a grinder lets you conquer even the tightest spaces with finesse. From delicate weld grinding to flawlessly smoothing edges, this tool is your precision partner, ensuring every detail shines.
  • ULESH URVLED PWER: Ready to unleash the beast? Meet the BT 6321-12! With its mighty 0.5HP motor and adjustable speed reaching up to 20,000 RPM, this grinder is a force to be reckoned with. Get ready to power through your projects with unrivaled efficiency and performance!
  • CMFRT MEETS CTRL: Say goodbye to discomfort and hello to control! The BT 6321-12 is not just a grinder, it's a game-changer. Weighing in at just 3.30 lbs (1.50 kgs) with the 12" extension, it's designed for comfort and balance. Get ready to tackle tasks with ease and precision, all while feeling like a pro.
  • CRFTSMSHP THT EDURES: Craftsmanship that stands the test of time! The BT 6321-12 is not your average grinder - it's a testament to durability and reliability. Made with top-quality components, this tool is built to last. Elevate your craft and trust in a grinder that's as tough as you are.
  • VERSTLE PPLCTS: From intricate weld grinding to edge smoothing and beyond, the BT 6321-12 is your go-to tool for a wide range of applications. Its versatility makes it an essential addition to any toolbox, empowering you to tackle various tasks with ease and precision.

Brand: Berkling Tools


Material: Composite and Aluminum


Style: Heavy Duty,Professional


Power Source: Air Powered


Color: Black


Brand: ‎Berkling Tools


Material: ‎Composite and Aluminum


Style: ‎Heavy Duty,Professional


Power Source: ‎Air Powered


Color: ‎Black


Item Weight: ‎3.3 Pounds


Wattage: ‎372.82 watts


Maximum Rotational Speed: ‎20000 RPM


Horsepower: ‎0.5 hp


Manufacturer: ‎Berkling Tools


Item Weight: ‎3.3 pounds


Package Dimensions: ‎19 x 4 x 3 inches


Item model number: ‎BT 6321-12


Is Discontinued By Manufacturer: ‎No


Size: ‎12" Extension


Finish: ‎Over Molded Rubber


Pattern: ‎Compact


Item Package Quantity: ‎1


Air Flow Capacity: ‎4 Cubic Feet Per Minute


Sound Level: ‎84 dB


Extension Length: ‎12


Handle Material: ‎Composite


Speed: ‎20000.00


Performance Description: ‎4 CFM @ 90 PSI


Special Features: ‎12" Extension


Usage: ‎Commercial/Residential


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: December 21, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great tool
Heavier than a Snap-On or Aircat, but it's under $40 and those are the only differences. Great tool. And the speed adjustment actually works. Been using is as a diesel mechanic for the laast few month and it's put up very well with the abuse soo far. No problems.
Reviewed in the United States on October 28, 2024 by Austin

  • Wish I bought this years ago
Material Type: Composite and Aluminum Size: Right Angle
I have never used a small angle grinder and never a pneumatic tool, but this tool is great. I tried it with some Kutzall carbide burrs to help me shape wood, and this tool does an amazing job. I really like the variable speed, which gives me precise control. I may be the only person who likes/needs a slower speed, but it is great. My one comment for improving the design would be to make the Underside of the trigger different. I found that I could put my finger under the trigger to help me keep the tool at a slower speed but it was a bit uncomfortable after a while. This tool has changed the way I work and opened up avenues of creativity for me. Oh, almost forgot.......you can't really see the guts of this tool, but it seems to be very well made and I hope it gives me some very serious service. ... show more
Reviewed in the United States on July 28, 2023 by C. Joseph Cattano

  • Works great
Material Type: Composite and Aluminum Size: 12" Extension
Works great and as it should
Reviewed in the United States on May 8, 2023 by Rednekgirlgonefishin

  • Berkling Tools Rock!
Material Type: Composite and Aluminum Size: 115 Degree
They came in a timely fashion with good, competitive pricing
Reviewed in the United States on June 28, 2024 by Chad

  • great product
Material Type: Composite and Aluminum Size: 115 Degree
very useful with enough horsepower. i stayed away from the die grinders that did not proudly mention the horsepower which means trouble
Reviewed in the United States on November 5, 2024 by Pier

  • Powerful, looks great, quiet, and very ergonomic.
Material Type: Composite and Aluminum Size: Right Angle
I decided to [upgrade] my toolset and change from the CP brand provided by our company. I must admit, I have found this product to be every bit as powerful & rugged as CP, if not, even-more-so. The product looks great and the black coated finish helps me easily identify mine from the other solid aluminum (CP) grinders. I have only had this product a short time (1-week), but all the signs of a well designed, built, and manufactured product are consistent with this item. Pros: • great value • great HP • ergonomic Cons: • haven’t owned it long enough to make an honest durability rating. Giving it 4-stars for that reason alone on durability. ... show more
Reviewed in the United States on May 28, 2020 by ♛KING VISTA♛™️

  • Better than Harbor freight
Material Type: Composite and Aluminum Size: Right Angle
Good grip adjustable speed and quite
Reviewed in the United States on June 2, 2023 by Grant

  • Air Grinder
Material Type: Composite and Aluminum Size: 12" Extension
Heavy Duty grinder with good reach and power !
Reviewed in the United States on August 7, 2023 by Daniel C.

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