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Norton

NORTON Abrasives - St. Gobain Premium Alundum 38A (07660788283) Type 01 Bench and Pedestal Wheel, Very Fine Aluminum Oxide Abrasive, 1" Arbor, 8" Diameter x 1" Thick

    • Based on 978 reviews
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Sunday, May 19
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Item Diameter String: 8 Inches


Item Thickness String: 1 Inches


Arbor Hole Diameter: 1 Inches


Fastening Type: Round Hole


Grit Type: 150


Maximum Rotational Speed: 3600 RPM


Part Number: 07660788283


Number of Items: 1


Features

  • For steel applications
  • Best performance level; very fine 150
  • White aluminum oxide in a premium vitrified bond
  • Maximum cut rate and cool cutting action on hardened or high-speed tool steels
  • Each wheel contains arbor bushings in sizes 5/8", 3/4", and 7/8"

Description

Norton premium white aluminum oxide bench and pedestal wheels provide maximum cut rate and cool cutting action on hardened or high-speed tool steels and other metals. Bench and pedestal wheels are used for offhand deburring and sharpening of parts and tools. Arbor bushings to 1/2", 5/8", 3/4", 7/8". Specification: Very Fine 60. All bench and pedestal wheels must be dressed to prevent loading. Loading can cause excessive heat, damage to the workpiece and wheel breakage. Dressing exposes new cutting edges and provides chip clearance. Do not grind wood, plastic or any other non-metallic material on a bench or pedestal grinder. Unsecured machines can move, causing grinding breakage and injury. Fixed-base bench and pedestal grinders must be secured.


Grit Material: Aluminum Oxide


Item Diameter: 8 Inches


Brand: Norton


Item Dimensions LxWxH: 8 x 8 x 1 inches


Compatible Devices: Bench Grinder


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 8 x 8 x 1 inches; 1.5 Pounds


Item model number ‏ : ‎ 07660788283


Date First Available ‏ : ‎ June 22, 2008


Manufacturer ‏ : ‎ St. Gobain Abrasives


Country of Origin ‏ : ‎ USA


Domestic Shipping: Item can be shipped within U.S. International Shipping This item can be shipped to select countries outside of the U.S. Learn More


Best Sellers Rank: #17,939 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #5 in Bench & Pedestal Grinding Wheels


#5 in Bench & Pedestal Grinding Wheels:


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, May 19

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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Top Amazon Reviews

    • Softer than expected
Item Diameter String: 6 Inches Item Thickness String: 3/4 Inches Arbor Hole Diameter: 1 Inches Fastening Type: Round Hole Grit Type: 150 Maximum Rotational Speed: 4140 RPM Part Number: 07660788248 Number of Items: 1
Nice stone, easy to use. My main comment it that it is wearing very fast, maybe 1/2” in a couple of months with occasional hobby use. I’m probably pushing it too hard on larger mild steel, but I get a pile of dust during use. Likely great for hss tools and bits.
Reviewed in the United States on February 26, 2023 by Craig Guinn
    • Good Wheel, Questionable Shipping and Handling
Item Diameter String: 6 Inches Item Thickness String: 3/4 Inches Arbor Hole Diameter: 1 Inches Fastening Type: Round Hole Grit Type: 100 Maximum Rotational Speed: 4140 RPM Part Number: 07660788247 Number of Items: 1
SHIPPING AND HANDLING. I ordered four grinding wheels from amazon for my two bench grinders. Two were six-inch Norton white wheels, one was a Norton seven-inch regular wheel, and one, a seven-inch Forney. In each case, the wheel was flopping around in the box with an ineffective bit of packing material. The Forney wheel was bare naked and had worn a hole in a pack of countersink drills. It was happily unsharpening them. The Norton wheels were in their own box inside the amazon package. The white wheels arrived undamaged. The seven-inch wheel had a chipped edge. Despite the poor amazon packaging, it probably was damaged BEFORE shipping because the internal box was dirty and scuffed with corners split. Amazon has always had a stellar reputation with me but (are you listening amazon?) they need to do a better job packaging (and handling) grinding wheels. Damaged wheels can fly apart explosively. For some disturbing reality, Google "grinding wheel deaths." Following are salient points regarding handling and storage from the government standard on grinding wheels, ANSI B7.1-1970. 1. Handle wheels carefully to prevent dropping or bumping. 2. Do not expose to high humidity, water or other liquids. 3. Do not expose to freezing temperatures or any temp low enough to cause condensation. 4. Perform the `ring test' to detect hidden cracks in vitrified wheels. For the ring test, support the wheel through the center hole with your finger or pin and tap the side of the wheel gently in several locations with a non-metallic object, such as the handle of a screwdriver. You should hear a clear metallic ring. If you hear a deadened thud, DO NOT use the wheel. INSTALLATION. From my perspective, there are three major considerations: 1. Safety. Perform the ring test, don't exceed RPM rating, have all guards in place, and stand to the side for a full minute before starting to grind. 2. Wobble. Clean the surface of the wheel flanges of any label or blotter residue from the previous wheel. If necessary, true the surface of the flange by rubbing it on a piece of fine sandpaper that is laying against a flat surface. Rotating the flanges with respect to the wheel sometimes helps. 3. Out-of-Round. Dress the wheel. I use this wheel dresser, it seems to work well. http://www.amazon.com/gp/product/B002KNOK9W/ref=oh_details_o01_s00_i00 EVALUATION OF WHEELS. The wheels that I put on my good grinder (yeah! Milwaukee 1980's vintage) were fairly well balanced from the beginning. The inner flange is cast with a machined face and a collar to hold it vertical on the arbor. The wheels had about 1/32 inch or less wobble and 1/32 inch or less out-of-round. I left the wobble, but dressed the wheel so it was perfectly round. There is very little vibration at full speed, with slight resonances as it slows down. I saw no difference between the Forney and Norton wheels. I put the Norton white wheels on my cheapo (boo! Craftsman 21st century vintage) bench grinder. The one wheel seemed well balanced. The second wheel wobbled like crazy. It was going a full 1/8 inch from side to side. I played around with the flanges and was able to reduce the wobble to less than 1/32 inch. It appeared that the cheap stamped flange was not seated properly in a lip in the arbor. After dressing the wheels, the Craftsman ran as smooth as the Milwaukee. I am happy with the Norton grinding wheels. And contrary to the experience of other reviewers, all came with adapters down to a ½-inch arbor. I may update this review after using the wheels for a while. I'll try to keep it shorter (-: ... show more
Reviewed in the United States on January 26, 2013 by Charles A. Miess
    • Works great, with two caveats
Item Diameter String: 6 Inches Item Thickness String: 3/4 Inches Arbor Hole Diameter: 1 Inches Fastening Type: Round Hole Grit Type: 60 Maximum Rotational Speed: 4140 RPM Part Number: 07660788246 Number of Items: 1
These wheels are fantastic compared to the "cheap" alternatives. Cheaper wheels cut about like concrete -- i.e., they rub and generate heat without removing much metal. Norton white wheels, on the other hand, are "softer" and are designed to continually shed the top layer of abrasive revealing fresh, sharp grains to cut metal quickly without heating it. There is a night and day differencce between cheap wheels and these Nortons when you want to rapidly remove a lot of metal. (By the same token, if you are just touching up tools that aren't terribly dull, then the cheap wheels will probably satisfy you.) While Norton wheels are very good at what they do, there are two issues to be aware of. The first is applicable to ANY wheel, no matter the brand or quality: ALL wheels must be dressed the first time they are mounted to true them up. No wheel can be manufactured with a precisely centered arbor hole, and a lot of grinders don't even have a motor shaft that spins perfectly true. By dressing the wheel immediately after mounting, any eccentricity is removed and the wheel should be fairly well balanced. I don't blame Norton for this issue because I don't believe any other wheel maker can do better -- failure to dress your wheel is a user problem, not a manufacturer problem. (Note that a side-to-side wobulation is usually a problem with your grinder's mounting flanges, especially on cheap grinders.) The second problem is the plastic adapters supplied with the wheel. I was still able to get my wheel to run true using them, but I had to remove a lot of material off one side of the wheel by dressing it excessively. This issue definitely IS Norton's fault, however remember that we as consumers tend to demand price before quality, so Norton is just doing exactly what we want -- supplying cheap adapters. So, if you are serious about grinding, the real solution is to go out and purchase metal arbor adapters that will be on-size and run true. ... show more
Reviewed in the United States on March 14, 2013 by tylernt
    • Perfect
Item Diameter String: 8 Inches Item Thickness String: 1 Inches Arbor Hole Diameter: 1 Inches Fastening Type: Round Hole Grit Type: 60 Maximum Rotational Speed: 3600 RPM Part Number: 07660788281 Number of Items: 1
Excellent for sharpening drill bits off a bit jig. If your drill doctor is running lean on the diamond grinder, this stone is a serious back up!
Reviewed in the United States on July 10, 2023 by Big Wave Dave
    • Very good wheel but not really Very Fine
Item Diameter String: 8 Inches Item Thickness String: 1 Inches Arbor Hole Diameter: 1 Inches Fastening Type: Round Hole Grit Type: 150 Maximum Rotational Speed: 3600 RPM Part Number: 07660788283 Number of Items: 1
This is a good basic stone with what I found to be two minor flaws: 1) This was listed as being Very Fine grit albeit only 150 grit. The resultant surface when grinding lathe gouges is a quite rough looking finish. Not what I'd call Very Fine at all. I'll likely have to buy another stone or do hand finish with an Arkansas stone to get good quality tool finishes. 2) the included bushings for the arbor were not very good fits to each other. Thus when I used them to go onto a 1/2" arbor they sagged down and mounted the stone out of round. If you are going to mount on any shaft other than 1" expect to have to go to Ace and get some steel or bronze sleeves or bushings for that. ... show more
Reviewed in the United States on October 12, 2020 by Cosmic11do2

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