Four-Edge Serrated Heavy Duty Eccentric Bit for Dry Drilling
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Availability may change at any time. To be sure, please contact the store before you buy.
Ultimate Multi-Material Performance
Take on your most challenging tasks without the need to switch tools. This heavy-duty drill bit is meticulously crafted to handle a wide range of materials, from fragile glass and ceramic tiles to robust granite, concrete, and stainless steel. With its durable carbide alloy construction, it maintains sharpness and effectiveness significantly longer than conventional bits, providing exceptional wear resistance for demanding applications.

Dry Drilling Revolution
Eliminate the mess associated with water cooling and the inconvenience of constant lubrication. This drill bit is specifically designed for dry drilling, enabling you to work more efficiently and cleanly on various projects. The innovative high-four-edged serrated tip minimizes friction and resistance, allowing for smooth penetration into hard surfaces while producing clean, chip-free holes.

Versatile Sizing for Any Project
Whether you are a skilled tradesperson or an enthusiastic DIYer, this drill bit seamlessly integrates into your existing toolkit. It is compatible with both standard hand drills and electric drills, making it simple to use right away. Available in sizes ranging from 4mm to 12mm, it offers the precision you need for everything from hanging shelves to mounting heavy fixtures.

Product Specifications
- Core Material: Industrial-Grade Carbide Alloy
- Coating: Premium Titanium
- Blade Type: 4-Edge Serrated Eccentric
- Cooling: None Required (Dry Drill)
- Size Options: 4mm, 5mm, 6mm, 8mm, 10mm, 12mm
- Surfaces: Tile, Glass, Marble, Concrete, Metal, Wood
What’s Included
- 1 x High-Performance Titanium-Coated Drill Bit
Frequently Asked Questions
Why is the 4-edge design better?
The four cutting edges provide a more balanced workload compared to standard two-edge bits, leading to reduced resistance, quicker cutting speeds, and a smoother finish with minimal chipping.
Can I really drill without water?
Definitely. The titanium coating and carbide construction are capable of enduring high temperatures, allowing for effective dry drilling without the need for water.
Is it strong enough for metal?
Yes, this bit is robust enough to drill through stainless steel in addition to concrete and stone.
Will it fit my cordless drill?
Absolutely, the shank is designed to work with both standard hand drills and electric power drills.
We aim to process your order as quickly as possible. All orders go through a processing time of 0–1 business day, during which we verify your order details, perform quality checks, and prepare your items for dispatch. You may return any product within 30 days — no questions asked.
Wasn't sure about ordering from a brand I hadn't heard of, but the quality was honestly better than I expected. Fits true to size and the fabric feels great. Arrived in just 2 days.
Ordered for a family wedding and got tons of compliments. Super flattering and felt really well made. Would definitely order again.
Simple, classic pieces that actually work for the office. Nothing too trendy or over-styled. Ordered a couple of things and both were spot on.
The fabric feels way nicer than you'd expect for the price. Arrived in just 3 days and I'm really happy with what showed up.
Ordered for my wife's birthday and she absolutely loved it. Packaging was really nice too. Felt like a real gift straight out of the box.
Had a question about sizing before ordering and they got back to me the same day. Size guide is accurate. Ordered my usual size medium and it fits perfectly.
Compared prices with a few other stores and Nivarena came out on top. Quality is really nice too. Good all around.
Been ordering from Nivarena since last fall. Every order has been consistent and arrived quickly. Really happy customer.
Used the size guide and it was spot on. The cut is really flattering and feels amazing on. So happy with it.
Really comfortable to wear all day, which is exactly what I was looking for. The fit is great and it looks just as good in person as in the photos.
Ordered for my girlfriend and she said it's one of her favorite things she owns now. Really glad I took a chance on a brand I hadn't heard of before.
Arrived in just 3 days, way faster than I was expecting. Everything was packaged really nicely too. Excellent service all around.
Goes with pretty much everything in my closet. Wearing it to work all the time now. Really nice quality fabric.
Everything was easy from ordering to delivery. Tracking was clear the whole way. Item was exactly as shown on the site. Will order again.