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- USA
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Ships within 48 hours · Estimated delivery Jun 13 - Jun 18
For Your Every Summer RSVP, with Code: SUMMER15
Description
Dremel 663DR 1/4" Glass Drilling BitNow drill holes in glass with your Dremel rotary tool. This diamond impregnated core style bit features superior long life and is ideal for drilling in both flat and contoured surfaces. Diamond grit a full 360 degrees around the circumference of the bit allows it to be used in a rasping action to enlarge a hole if needed. Holes on the side of the bit allow the removal of glass dust from inside the bit. For use on glass, ceramic wall tile, glass block,

Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 467 reviews
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Product Reviews
★★★★★ 5
Stay cool
Just what I needed, super fast shipping
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 19, 2025
★★★★★ 5
Outboard is Cooling
The repair kit arrived on time as scheduled. The kit contained everything needed to replace the Mercury 175 OptiMax impeller. The engine is cooling now and we are back on the water without issue. Easy replacement.
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Reviewed in the United States on July 5, 2023
★★★★★ 5
Carries all the current I want. Super flexible, great price
Size: 8 AWG 3 ft per color, Color: Red and Black
Very nice high quality. Somebody tried to tell me this was aluminum strands. But after test sanding an exposed end, I could see copper color. I believe the confusion is they are individually tinned strands? 🤷 Just sayin...
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Reviewed in the United States on June 28, 2025
★★★★★ 5
good quality.
Size: 8 AWG 3 ft per color, Color: Red and Black
The wire worked very well for my project.
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Reviewed in the United States on April 22, 2024
★★★★★ 5
Well worth the money
Size: 8 AWG 3 ft per color, Color: Red and Black, Size: 8 AWG 3 ft per color, Color: Red and Black
Much easier to use over trying to put the hard case extension wires in my solar controllers.. very well made.
Now I can feel confident I got the wires in properly.
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Reviewed in the United States on March 18, 2019




