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Covington Engineering

Covington Resin Bonded Diamond Smoothing Domes

Covington Resin Bonded Diamond Smoothing Domes

SKU: DRD100-5811

Regular price
Price: $135.00
Regular price
List Price:
Sale price
Price: $135.00
Why Buy From Lapidary Mart

Shipping Policy

We ship with:

Shipping Options

Free Shipping

Free shipping offers (where indicated) apply to orders with a shipping address in the lower 48 states only. 

Shipping Charges

If a product doesn't have a Free Shipping label, then shipping will be charged at checkout. A handling charge of $5 to $15, depending on the products and the amount of the order, is included.

Please note that our shipping software isn't always accurate, especially when ordering multiples of the same item or very heavy items. If you are overcharged for shipping, we will issue you a refund for the difference. If you are undercharged, then you got a great deal!

International Orders

We do not ship internationally.

Order Confirmation

As soon as you place your order, you will receive an order confirmation email. This means that we have received your order in our system and pre-authorized your credit card for the purchase. When we receive your order, we reach out to our suppliers to confirm that it is available for shipment within the specified time frame.

If your item is on back-order or unavailable, we will reach out to you via email or phone and void the pre-authorization if you so desire. If your item(s) are available for shipment, we will process the charges and submit the order for shipment.

Order Shipment

If your order is in stock and we process the charges to your credit card, it will ship within the following time frame according to brand, from the date of your order:

Lightning Lap: 1-2 business days
Crystalite: 2-5 business days
Gemini: 5-15 business days
Covington Engineering: 1-5 business days
CabKing, Hi-Tech Diamond, Inland and Tumble-Bee: 1-5 business days

Please keep in mind that processing times may be a little longer during holiday periods. Shipments can also be delayed due to supply-chain issues with our manufacturers. We will inform you if there is any significant delay expected.

We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out. If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at


Please inspect the packaging of your item(s) when they arrive, if you notice any damage you should make note of it when signing for delivery. If your item(s) do arrive damaged, please send photos to and we will process an insurance claim on your behalf.

Covington Resin Bonded
Diamond Smoothing Domes

Diamond Resin Smoothing Domes are perfect for smoothing glass on your grinder or lap! A resin or plastic bonded diamond dome has a shorter life span than the nickel bonded domes, but is a less aggressive option and some find it easier to work with edges.

These are great for pre-polishing steps on inside curves. These domes are approximately 4" across the base and 2-1/2" in height. Standard thread sizes are 1"-14RH female and 5/8"-11RH female.

A male to male adapter is needed to mount these on your Covington flat lap.

Free shipping when ordered with any Covington brand machine.



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