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Black+Decker BDEG400 Angle Grinder vs Bauer 8 Amp Angle Grinder

The Bauer 8 Amp is the stronger grinder: more power, higher speed, a tool-less guard and a much larger review base. The Black+Decker BDEG400 is the lighter, cheaper-feeling option with a 3-position side handle and a 2-year warranty. On price, the Bauer has ranged from $34.99 to $72.20 since November 2, 2026, while the Black+Decker has no price given here. Buy the Bauer for regular cutting and grinding; pick the Black+Decker only if you want a light occasional-use tool and its price beats the Bauer's.

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BLACK+DECKER
Black+Decker BDEG400

Black+Decker BDEG400 Angle Grinder

Black+Decker BDEG400

4.1(43 ratings)
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Choose the Black+Decker BDEG400 if you want a light 4.8 lb grinder for occasional sharpening and rust removal and its price undercuts the Bauer.

Pros
  • Light at 4.8 lb for overhead and one-hand work
  • 3-position side handle suits different materials and angles
  • 2-year Black+Decker warranty
  • Spindle lock for quick wheel changes
  • Metal gear case for durability
Cons
  • 6.5A and 10,000 rpm is less power than the Bauer
  • 6 ft cord limits reach without an extension cord
  • Small review base of 43 ratings
  • No tool-less guard adjustment
Bauer
Bauer 8 Amp 4-1/2 in. Trigger Grip Angle Grinder

Bauer 8 Amp Angle Grinder

Bauer 8 Amp 4-1/2 in. Trigger Grip Angle Grinder

4.7(2,100 ratings)
See all prices and details

Choose the Bauer 8 Amp if you cut and grind metal or concrete regularly and want more power, 11,000 rpm and a tool-less guard.

Pros
  • 8A motor and 11,000 rpm for faster cutting and grinding
  • Tool-less adjustable guard saves time on wheel changes
  • 4.7 of 5 from 2,100 ratings
  • Spindle lock and 5/8 in-11 spindle take standard 4-1/2 in wheels
  • Price has dropped as low as $34.99 since November 2, 2026
Cons
  • Heavier and longer body than the Black+Decker
  • No warranty term listed
  • Price swings widely, from $34.99 to $72.20 since November 2, 2026
  • Cord length not listed

What separates them

Black+Decker BDEG400 Angle GrinderBauer 8 Amp Angle Grinder
Amperage6.5A8A
No-load speed10,000 rpm11,000 rpm
Weight4.8 lbNot listed; 13 in long, 3.88 in tall
Wheel guardStandard guard, tool required to adjustTool-less adjustable Type 27 guard
Side handle3-positionIncluded, position count not listed
Cord length6 ft statedNot listed
Warranty2-year Black+Decker warrantyNot listed
Review base4.1 of 5 from 43 ratings4.7 of 5 from 2,100 ratings

Price history

$72.20$34.99
Oct 29Nov 4
  • Black+Decker BDEG400 Angle Grinder: lowest $44.99 on Oct 29.
  • Bauer 8 Amp Angle Grinder: lowest $34.99 on Nov 2 at Harbor Freight Tools; $72.20 on Nov 4.

Prices at every store

Black+Decker BDEG400 Angle Grinder

  • WalmartCheck price at Walmart
Prices and history →

Bauer 8 Amp Angle Grinder

  • eBayCheck price at eBay
  • MercariCheck price at Mercari
  • Harbor Freight ToolsCheck price at Harbor Freight Tools

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Prices and history →

Specs compared

SpecBlack+Decker BDEG400 Angle GrinderBauer 8 Amp Angle Grinder
Amperage6.5A8 amp
No load speed10,000 rpm11,000 RPM
Spindle thread size5/8 in-115/8 in. -11 UNC
Voltage120V AC120V
Switch typeTriggerTrigger-Grip
Wheel diameter4-1/2 in—
Cord length6 ft—
Overall length12 1/2 in—
Assembled weight4.8—
Assembled height12.5—
Assembled width5.19—
colorOrange—
Show all 32 specsShow fewer specs
SpecBlack+Decker BDEG400 Angle GrinderBauer 8 Amp Angle Grinder
size4.5—
Maximum Speed—11,000 RPM
Power Source—Corded Electric
Grinder Type—Angle grinder
Grinder Brand—BAUER
Grinder Model Number—64742
Safety Features—Tool-less adjustable wheel guard, Spindle lock
Maximum Rotational Speed—11,000 RPM
Power—8 Amp
Grinding Wheel Size

What reviewers say

Black+Decker BDEG400 Angle Grinder

  • 4.1 / 543 ratings

Reviewers rate the BDEG400 4.1 out of 5 and call it powerful and a good value. Owners say it handles cutting and grinding concrete and metal. The main complaint is that the cord is shorter than expected.

What people mention
  • PowerPraisedOwners say the 6.5A motor cuts and grinds concrete and metal without bogging down.
  • ValuePraisedReviewers call it a good buy at its price and say the amperage is high for the class.
  • Cord lengthCriticisedOne owner reports the cord is shorter than the stated length.
  • BuildPraisedThe metal gear case is cited as a durability plus.

Bauer 8 Amp Angle Grinder

  • 4.7 / 52,100 ratings

Rated 4.7 out of 5 from about 2,100 ratings, owners treat this as a strong value grinder for home and light shop work. Most praise the power and price; complaints center on vibration and the corded, single-speed design.

What people mention
  • PowerPraisedOwners say the 8 amp motor cuts and grinds steel without bogging down.
  • ValuePraisedBuyers call it a lot of grinder for the price.
  • VibrationCriticisedSome owners report noticeable vibration and hand fatigue in longer sessions.
  • CordMixed

Questions and answers

Which is better for cutting metal?
The Bauer. Its 8A motor and 11,000 rpm spin a 4-1/2 in wheel faster than the Black+Decker's 6.5A and 10,000 rpm, so cuts go quicker.
Which is better for light sanding and rust removal?
The Black+Decker is fine for this. At 4.8 lb it is easier to hold at odd angles, and the 3-position side handle helps on flat surfaces.
Is the Bauer worth the extra money?
Yes if you use a grinder often. You get 1.5A more power, 1,000 more rpm and a tool-less guard; its price has been as low as $34.99 since November 2, 2026.
Which lasts longer?
The Bauer has the larger review base at 4.7 of 5 from 2,100 ratings, which suggests fewer complaints over time. The Black+Decker backs its tool with a 2-year warranty.
Do they use the same wheels?
Yes. Both take 4-1/2 in wheels on a 5/8 in-11 spindle, so discs and cups fit either grinder.
Which is easier to handle?
The Black+Decker. It weighs 4.8 lb and is 12.5 in long; the Bauer is 13 in long and heavier, though its exact weight is not listed.

More comparisons

  • Black+Decker BDEG400 vs Makita 9557PBX1
  • DeWalt DWE4214 4-1/2 Inch 11 Amp Angle Grinder Slide Switch Corded vs Black+Decker BDEG400
—
4-1/2 in.
Applications—Grinding, Cutting
Height—3.88 in.
Length—13 in.
Width—2.75 in.
Wheel Type—Type 27 guard
Blade Diameter—4.5 inches
Blade Maximum Speed—11,000 RPM
Blade Type—Type 27 guard
Guard Size—4-1/2 in.
Included Accessories—Wrench, Arbor nut, Side handle
The corded design gives steady power but limits where it can be used.