Drill Wine Bottles and Glass Block
With Your Dremel Tool

(Almost)1/2" Diamond Core Bit For Dremel
(Almost)1/2" Diamond Core Bit For Dremel
Item# DCB12
Regular price: $39.00
Sale price: $9.95, 3/$18.99, 5/$28.99
Availability: Usually ships the same business day

Product Description

Almost 1/2" Diamond Core Bit for Dremel Tools



Miniature LED 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 tools.

Contrary to what you may see on other websites no one makes a 1/2" diamond bit to fit a Dremel tool. 15/32" is as close as we (or anybody else) can get to 1/2".

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 LED 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

Drill Glass LLC
1227 Rockbridge Rd.
Suite 208-164
Stone Mountain, GA 30087


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!