Pay in installments of $38.52 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
For Your Every Summer RSVP, with Code: SUMMER15
Description
DEGUSSIT® Ruby® Stones, Half Round 4" x 3/8"Gesswein Ruby Stones and Files are made by Friatec Degussit from pure, sintered crystals of synthetic ruby. No bonding material is used, so these stones are extremely hard and resistant to changes in shape. This is particularly important for quality precision grinding and finishing. In addition, since Gesswein Ruby Stones have an outstanding resistance to wear, they are more economical to use than other comparable tools. Use dry or with Gesswein
Gesswein Ruby Stones and Files are made by Friatec-Degussit from pure, sintered crystals of synthetic ruby. No bonding material is used, so these stones are extremely hard and resistant to changes in shape. This is particularly important for quality precision grinding and finishing.
In addition, since Gesswein Ruby Stones have an outstanding resistance to wear, they are more economical to use than other comparable tools.
Use dry or with Gesswein Stoning Oil to grind, touch up or debur steel and carbide parts. Ruby stones are also recommended for use on materials such as glass, quartz and porcelain.
All are 100mm (4") long, medium grit in a variety of shapes & sizes.
*All dimensions have tolerance of ±0.1mm.
Ruby Stones are the ideal choice for deburring, blending, dressing, and fine polishing of molds & dies made of hard metals such as hardened tool steel, carbide and surgical stainless steel. Jewelers use them for sharpening of carbide and high speed steel engravers and other tools.
Mold & Die Uses:
In addition, since Gesswein Ruby Stones have an outstanding resistance to wear, they are more economical to use than other comparable tools.
Use dry or with Gesswein Stoning Oil to grind, touch up or debur steel and carbide parts. Ruby stones are also recommended for use on materials such as glass, quartz and porcelain.
All are 100mm (4") long, medium grit in a variety of shapes & sizes.
*All dimensions have tolerance of ±0.1mm.
Ruby Stones are the ideal choice for deburring, blending, dressing, and fine polishing of molds & dies made of hard metals such as hardened tool steel, carbide and surgical stainless steel. Jewelers use them for sharpening of carbide and high speed steel engravers and other tools.
Mold & Die Uses:
- Deburring ejector pin holes.
- General deburring and edge breaking on mold steel and carbide.
- Blending a surface where a straight edge meets a radius.
- Polishing highly detailed areas on dies (after dressing Ruby Stone to a fine point).
- Ruby Midget Files (see "Related Products" below) can be used in an Ultrasonic Handpiece for fast deburring and blending in ribs and other hard to reach areas. Ruby Stones cut faster than our very popular Super Ceramic Stones.
- Fine polishing of surgical stainless steel instruments.
- Polishing and shaping of carbide & high speed steel gravers.
These fine grinding stones are made of Degussit DD57 (sintered ruby) which is a homogenous mixed-crystal material. The main element is aluminum oxide. The characteristic red colour is the result of an admixture of chromium oxide.
Because Degussit DD57 is a homogenous ceramic material which is bondfree, these stones cannot be classified in terms of "grit" but only in terms of the average grain size. The average grain size of types "fine" and "medium" is about 10µ. Type "coarse" has two average grain sizes at about 10µ and 100µ.
No bonding material is used, so these stones and files are extremely hard and resistant to changes in shape. This is particularly important for quality precision grinding and finishing.
In addition, since Degussit Ruby Stones and Files feature outstanding resistance to wear, they are more economical to use than other comparable tools.
Use dry or with Gesswein Stoning Oil to grind, touch up or debur steel and carbide parts. Also recommended for use on materials such as glass, quartz and porcelain.
Because Degussit DD57 is a homogenous ceramic material which is bondfree, these stones cannot be classified in terms of "grit" but only in terms of the average grain size. The average grain size of types "fine" and "medium" is about 10µ. Type "coarse" has two average grain sizes at about 10µ and 100µ.
No bonding material is used, so these stones and files are extremely hard and resistant to changes in shape. This is particularly important for quality precision grinding and finishing.
In addition, since Degussit Ruby Stones and Files feature outstanding resistance to wear, they are more economical to use than other comparable tools.
Use dry or with Gesswein Stoning Oil to grind, touch up or debur steel and carbide parts. Also recommended for use on materials such as glass, quartz and porcelain.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 21 reviews
Sort
Product Reviews
★★★★★ 5
QUALITY AND COMPORTABLE FITTING IN LOWER PRICE...
Color: Navy, Size: Large
WOW! this suit really true to its sizes description... I ordered in a different company before this, but I have to return it TWICE because of wrong size fittings... Finally, this beautifully tailored suit timely arrived before my son's wedding reception, and we are ready to celebrate!!! Thank you and might order some different colors in the future... I wonder if they can make the pants in higher waist and straight cut or wider for the legs in the future as an option... Just a thought since slim fit pants are slowly outdating...
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
★★★★★ 5
Great quality product!
Color: Black, Size: Large
Great product and great fit. I ordered a Large and normally wear a 42 Regular. Jacket was perfect, as was the vest. Pants waist is flexible and fit fine but length needs to be shortened. Overall, I’m impressed with this product! Highly recommended!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
★★★★★ 5
Fashion on budget.
Color: Black, Size: Medium
Beautiful, solid material, the texture feels expensive. Only returning because I need 2 sizes down as my son is very slim. Ordering an XS right away.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
★★★★★ 5
I am a satisfied customer (My 4th pair)
Size: 14 Years, Color: Royal Blue
I ordered several suits from YND. I started with them when my son was a size 10 now he is a size 14. I bought different colors. They fit and look great on him All the colors are perfect. Great fabric. Very comfortable. Everything is always as described. The price is right. Always on time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 14, 2024
★★★★★ 5
Stylish suit and good quality
The material and fitting is very good. I would recommend to size down if you want a perfect fitting suit or if you don't have time to alter. I purchased a 4T and 5T for a 5 year old with longer torso compared to legs. The 4T ended up as a perfect fit with no room to grow whereas for the 5T the pants ran a little long but other pieces were perfect.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 24, 2023