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Berkling BT 6321-7 1/4in Air Die Grinder, 7in Extension, 20,000 RPM

  • Based on 55 reviews
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Availability: Only 6 left in stock, order soon!
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Arrives Tuesday, Oct 27
Order within 1 hour and 27 minutes
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Material Type: Composite and Aluminum


Size: Straight - 7 Inch Extension


Features

  • VERSATILE DESIGN: Professional-grade pneumatic die grinder with right angle, 90, 115 degree, and straight die grinder variants; Perfect for tight spaces, intricate edges, and detailed work on various materials.
  • POWERFUL PERFORMANCE: Heavy-duty extended reach air die grinder featuring 0.5HP motor; Delivers 20,000 RPM for efficient cutting, grinding, and polishing; Compatible with standard 1/4 die grinder bits for maximum versatility.
  • PRECISION CONTROL: Variable speed pneumatic angle grinder with smooth power delivery; Ideal for weld grinding, sanding, deburring, and detailed finishing; Provides exceptional control for professional results.
  • ERGONOMIC COMFORT: Lightweight aluminum body mini die grinder with comfort grip; Reduces fatigue during extended use; Perfect balance between the power of an air angle grinder and precision of a pneumatic pencil grinder.
  • WORKSHOP ESSENTIAL: A professional-grade pneumatic right angle die grinder designed to work with standard air compressors, delivering strong, smooth performance with low 84 dB noiseperfect for metal, wood, polishing, sanding, and precision work.

Description

Air Die Grinder 7" long Air Die Grinder 12" long Air Die Grinder Straight Air Grinder 90° angled Air Grinder 115° angled Berkling Tools is the Leader in Quality Tools for Home, Business, and Industry Berkling Tools exemplifies the pinnacle of American ingenuity, seamlessly blending innovative features with cost-effective solutions. Simply put, Berkling offers unparalleled value for your investment. Every tool is meticulously inspected for enduring quality. Our dedication to excellence establishes us as a top choice for professionals and enthusiasts. Get the best of both worlds with the 7102 multi-functional air tool, which doubles as an air saw and air file. Achieve precision in hard-to-reach areas with our 7" and 12" extra-long shaft air die grinders. 2790T - our top-tier 3/4" air impact wrench, boasting an impressive 1750 ft-lb torque and unmatched power-to-weight ratio. Discover the BT 5201 Mini Air Sander - achieve superior performance with smooth, stable motion for the perfect finish in tight spaces

Brand: Berkling Tools


Power Source: air-powered


Recommended Uses For Product: Deburring, Grinding, Polishing


Color: Black


Special Feature: 7" Extension


Power Source: air-powered


Recommended Uses For Product: Deburring, Grinding, Polishing


Other Special Features of the Product: 7" Extension


Maximum Rotational Speed: 20000 rpm


Minimum Speed: 20000 rpm


Color: Black


Style Name: Heavy Duty,Professional


Item Weight: 2.9 pounds


Item Highlight: 0.5HP Motor, Variable Speed Control, Lightweight Aluminum Body, Low 84dB Noise, Ideal for Weld Grinding & Edge Smoothing


Brand Name: Berkling Tools


Included Components: 1 x Screwdriver Bit


Model Number: BT 6321-7


Number of Items: 1


UPC: 670924924487


Manufacturer: Berkling Tools


Manufacturer Part Number: BT-GND-014-007


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 27

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
Material Type: Composite and Aluminum Size: Straight - 7 Inch Extension
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

  • Great product.
Material Type: Composite and Aluminum Size: Straight - 7 Inch Extension
Great product, fast shipping..
Reviewed in the United States on June 12, 2026 by Brian E.

  • Good product
Material Type: Composite and Aluminum Size: Straight - 7 Inch Extension
Is working good for the price
Reviewed in the United States on May 7, 2025 by Amazon Customer

  • Extended die grinder.
Material Type: Composite and Aluminum Size: Straight - 7 Inch Extension
Very smooth high-speed tool, good for porting cylinder heads. Nice long reach.
Reviewed in the United States on May 19, 2025 by Ron N.

  • Great tool
Material Type: Composite and Aluminum Size: Straight - 7 Inch Extension
Used extensively and held up. Would buy again.
Reviewed in the United States on January 24, 2023 by Rodney Lomprey

  • Well made
Material Type: Composite and Aluminum Size: Straight - 7 Inch Extension
Works great, the built-in variable speed is nice. All around it a good tool.
Reviewed in the United States on April 26, 2022 by Steven McIlvaine

  • Good weight and length
Material Type: Composite and Aluminum Size: Straight - 7 Inch Extension
I like the weight of it. It's not too heavy for extended use and it's good at getting into places a normal length die grinder won't reach.
Reviewed in the United States on February 25, 2020 by R. Toolan

  • Not so good
Material Type: Composite and Aluminum Size: Straight - 7 Inch Extension
Here’s the story. I bought this in June, and around September it broke. The pin under the trigger that engages the tool fell out. I rigged it up with tape and went on with my day. I contacted the manufacturer and they offered me a replacement. It would’ve taken a week or 2 and I use it everyday. I decided not to replace it because the chuck that accepts the bits is too small. I bought the bits I thought fit and they slip out. I’m going to purchase another one, but not this brand. I don’t think it’s built for the working environment I’m in. It runs fine, but it fell apart. Like I said, the manufacturer offered to exchange it, but why. ... show more
Reviewed in the United States on November 6, 2025 by ryan conway

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