Invisible Sponge BitSert

Name: Inland Craft Invisible Sponge BitSert - Invisible Sponge BitSert
Brand: Inland Craft
SKU: 45091963306166
Price: 6.95 USD
Availability: InStock
Rating: 4.1875 (15 reviews)

4.5 (1,234)

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$6.95

Quantity

Color

Black

Quantity

Description

The Invisible Sponge BitSert is a sponge-free cooling option when grinding with diamond bits for longer bit life and faster grinding. For use with the Wizard IV, WizCG, and WizlingCG grinders. Available in both 3/4" and 1" diameters.

How doe...

Reviews

4.2

16 ratings

Invisible insert is great

I’ve always used sponges on these glass grinders. I’m so glad I switched. They lubricant the glass perfectly!!!

Randy · August 18, 2026

invisible sponge bit

It really works! This had become my favorite grinder since I started using the invisible sponge bit.

Susan · July 22, 2026

Awesome accessorie!

Who knew grinding could be so much easier! I've been doing stained glass for 30+ years and wish I would have known about this sooner. Toss the sponges and get this tool, you won't be sorry.

VVR · February 21, 2026