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home : glass tools : drill bits & engravers : 1/4" glastar diamond drill bit

1/4" Glastar Diamond Drill Bit by Glastar

5.0 star rating (2 reviews)
$27.95 USD
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Item# 5126 In Stock   Usually ships in 1 to 2 business days.
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Frequently Bought Together
1/4 Glastar Diamond Drill Bit
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3/8 Glastar Diamond Drill Bit
Price For All Three: $149.85
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Product Description
Diamond drill bits from Glastar make holes in glass fast. Make openings for clockworks, jewelry and other things. They work with any electric drill and only need water as a lubricant. Each bit drills 50-60 holes. Made with a patented diamond bonding process for extra long life.
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50 stars (2)
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5 out of 5 stars
5 stars Glastar Makes Best Bits By on
Pros : I have never had any problems with any size of these bits by Glastar. They last well over 50x when used properly under water. Start the drill at a 45 degree angle, then straighten up. Let the weight of the drill do the pressing, go fast on the speed, but slow on the penetration. Change your water often!
Cons :
Other Thoughts : I trust this brand more than any I have ever used.
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2 of 4 people found this review helpful
5 out of 5 stars
5 stars Worked fine By on
Pros : I've made a few holes with these and have not had any breakage.
Cons : You need a high-speed drill to take full advantage of these, although any drill will work - it will just take longer.
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2 of 4 people found this review helpful

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