Pictures show a polished joint. Text indicates a ground joint. Which is it?

This piece comes in polished and ground.

Is this nal compatible with a 20mm enail barrel coil?

No, for a 20mm coil and a 14mm male joint, we have this: Domeless Quartz Nail for Heating Coils that will fit your coil :)

14.5mm / Male - Quartz Domeless Nail - Smoke Cartel - - Quartz Domeless Nail

14.5mm / Male

18.8mm / Male - Quartz Domeless Nail - Smoke Cartel - - Quartz Domeless Nail

18.8mm / Male

Quartz Domeless Nail

Name: Quartz Domeless Nail
Brand: Smoke Cartel
SKU: NLQM-18
Price: 29.99 USD
Availability: InStock
Rating: 4.39 (18 reviews)

Rated 4.39 out of 5 stars from 18 reviews / 3 Answered Questions

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About this Product

Product SKU: NLQM-18

This is a new domeless nail design that features a direct inject design with a grounded 10mm, 14.5mm, 18.8mm, male or female joint. It's perfect for your concentrate rigs!

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Great nail
"It was left out of my order initially, but a new one was sent and they threw in a torch to compensate for the mistake. Stand up company and fantastic nail.."

- Hollis Verified Buyer

Fits these Joints

10mm

Male

Highlights

Ground Joint
Highest Quality Materials
Polished Joint
Quartz Nail

Included in Your Purchase

Quartz Domeless Nail Quartz Domeless Nail Quartz Domeless Nail Quartz Domeless Nail Quartz Domeless Nail Quartz Domeless Nail