anthonycosier37
Plastic
- Joined
- Apr 28, 2021
how to sharpen the blank that comes with 20mm h10 carbide for metal scraping as i am a newbie to the art
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sandvik metal scraper
- Thread starter anthonycosier37
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hvnlymachining
Cast Iron
- Joined
- Jun 21, 2019
- Location
- St.Onge
Several great videos online about it. My Sandviks came pre sharpened.
Joe Gwinn
Stainless
- Joined
- Nov 22, 2009
- Location
- Boston, MA area
Make and model?
Also, please enter your geographic location in your user profile such that it appears below your name at the left of postings.
Joe Gwinn
Stainless
- Joined
- Nov 22, 2009
- Location
- Boston, MA area
Aren't these intended for scraping wood?
hvnlymachining
Cast Iron
- Joined
- Jun 21, 2019
- Location
- St.Onge
Sandviks also sells carbide insert machine scrapers
4GSR
Diamond
- Joined
- Jan 25, 2005
- Location
- Victoria, Texas, USA
The 20mm is the width of the blade and H10 is the grade of the carbide. In this case, it's C-2 grade carbide for scraping cast iron.
This is the insert used in the Sandvik hand scraper and holders for the Biax scraper for those that like to use it on the power scraper.
This is the insert used in the Sandvik hand scraper and holders for the Biax scraper for those that like to use it on the power scraper.
Richard King
Diamond
- Joined
- Jul 12, 2005
- Location
- Cottage Grove, MN 55016
We discussed this in the Machine Reconditioning forum a few times.
Here is one from 2015:
Here is one from 2015:
Sandvik Scrapers Blades
The Sandvik blades come in 30mm, 25mm, and 20mm but I cannot find reference to the radius on the blade, does anybody know?
www.practicalmachinist.com
anthonycosier37
Plastic
- Joined
- Apr 28, 2021
sandvik 620-20 H10 20mm blade
L Vanice
Diamond
- Joined
- Feb 8, 2006
- Location
- Fort Wayne, IN
Short answer is use a diamond grinding wheel with a flat face.
I most like my Glendo Accu- Finish Series I grinder. I also have a Baldor carbide grinder and a Leonard Grinder-Lap. These are all expensive industrial quality metalworking tools, but you might find a deal on a used one.
Cheapest way I know is a Chinese 6" thin steel disc with electro plated diamond in many grit sizes, sold on eBay for $13.50 with free shipping from KY.
These disks fit the Work Sharp 3000 grinder, which is comparatively inexpensive and is also very nice for sharpening woodworking tools.
Or you can build your own grinder.
Larry
I most like my Glendo Accu- Finish Series I grinder. I also have a Baldor carbide grinder and a Leonard Grinder-Lap. These are all expensive industrial quality metalworking tools, but you might find a deal on a used one.
Cheapest way I know is a Chinese 6" thin steel disc with electro plated diamond in many grit sizes, sold on eBay for $13.50 with free shipping from KY.
6'' inch Diamond Lap Disk Grinding Disc 1/2 inch Arbor Hole For Gemstone Jewelry | eBay
Arbor hole : 12.7mm (close to 1/2" ). Suitable to grinding gemstone, jewelry, glass, rock, carving knife, etc…. Diamond coating surface area : almost 95%,only one side is coated diamond. Diamond coating Density : Perfectly high.
www.ebay.com
These disks fit the Work Sharp 3000 grinder, which is comparatively inexpensive and is also very nice for sharpening woodworking tools.
Or you can build your own grinder.
Larry
anthonycosier37
Plastic
- Joined
- Apr 28, 2021
what sort of rake and radius
L Vanice
Diamond
- Joined
- Feb 8, 2006
- Location
- Fort Wayne, IN
Negative and depends on what and how you want to scrape. But those are big tools for big open areas, not for little dovetails and tight places.
Larry
Larry
johnoder
Diamond
- Joined
- Jul 16, 2004
- Location
- Houston, TX USA
Wonderful tools. The diamond grit needs to be capable of mirror finishes on the scraper blade. Else wise you are making versions of a plowed field
anthonycosier37
Plastic
- Joined
- Apr 28, 2021
is there a certain degree of rake for moore scraping a flat surface plate
Richard King
Diamond
- Joined
- Jul 12, 2005
- Location
- Cottage Grove, MN 55016
neg 5 deg rake with a 60 mm to 90 mm radius of a circle....or a 2" to 3 1/2" circle. Thanks Miland
Last edited:
anthonycosier37
Plastic
- Joined
- Apr 28, 2021
ok thanks
anthonycosier37
Plastic
- Joined
- Apr 28, 2021
my metal scraper is only 20mm how could i put a 60 to 90mm radius
Milland
Diamond
- Joined
- Jul 6, 2006
- Location
- Hillsboro, New Hampshire
It's an arc segment, not a tangential radius.
Richard King
Diamond
- Joined
- Jul 12, 2005
- Location
- Cottage Grove, MN 55016
Richard King
Diamond
- Joined
- Jul 12, 2005
- Location
- Cottage Grove, MN 55016
Biax Radius gage is 3rd one down. The middle 1" square is for counting points per inch PPI.
The radius's are 60mm, 90mm, and 140 mm.
The radius's are 60mm, 90mm, and 140 mm.
anthonycosier37
Plastic
- Joined
- Apr 28, 2021
thank you so much where did you get sandvik scraper data from