Drill Wine Bottles and Glass Block
With Your Dremel Tool

Almost 1/2" Diamond Core Bit -  Dremel
Almost 1/2" Diamond Core Bit - Dremel
Item# DCB12
Regular price: $39.00
Sale price: $18.00, 5/$74.00, 10/$125.00
Availability: Usually ships the same business day

Product Description

Almost 1/2" Diamond Core Bit for Dremel Tools



Miniature Christmas lights will fit through this hole.

Every year at the national hardware show we look for diamond core bits to fit in a Dremel tool. Specifically, we're looking for one that is 1/2"

Finally, last year one manufacturer started making the core bits for a Dremel tool. Unfortunatly, no one makes a 1/2" diamond bit to fit a Dremel tool.

½” is deemed by the drill bit manufacturers and Dremel as too large to be used in a Dremel® rotary tool. This 15/32" (almost 1/2") is the largest that we can find.

Drill (almost) 1/2" holes in glass, ceramics and porcelain. Big enough for Christmas lights. It's easy with your FREE copy of the ”How To Drill Glass” drilling guide.

If you absolutely need ½” then you’ll need to use a 1/2" diamond core bit with your regular drill. If “close to ½” is close enough for your project then this 15/32” diamond core bit will fit your Dremel tool.

Order now and your order includes:

  • FREE "How-To Drill Glass" Drilling Guide.
  • FREE shipping saves you money
  • 100% money back, no risk guarantee


These diamond core bits, or diamond hole saws, are the best value that you’ll find on the web or anywhere else.


  • You'll drill (almost) 1/2” holes in glass bowls, ceramics and tile
  • Drill wine bottles and glass block
  • 1" depth of cut, 1/8" arbor or shank fits your Dremel® tool
  • Fits your Dremel® tool or rotary tool
  • Designed to be used wet, with lubrication

DiamondBurs.Net LLC
1227 Rockbridge Rd.
Suite 208-164
Stone Mountain, GA 30087
We don't currently have a retail storefront location.
1-404-382-8122 (Phone)

1-706-407-4447 (Fax)

Office Hours: (Monday-Friday) 8:00AM to 4:00PM EST

All orders received by 3:00PM (EST) are shipped the same business day.

Thank you for your business. Please send questions, comments, and suggestions: Guy Reddick by email.

Thanks again!