$78.98
Holiday Deal
· 17% off
was $94.99
Buy Now, Pay Later
As low as
$13.16
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
Extended holiday returns
FREE refund/replacement until Jan 31, 2027 Learn more
FREE refund/replacement until Jan 31, 2027 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Monday, Nov 16
Recently Viewed
At a glance
- Condition
- New
- Size
- 4 in
- Model
- WBP0400A4
- Dimensions
- 17.52 x 4.13 x 4.13 in
- Weight
- 16 oz
- Material
- Diamond
- Cutting Diameter
- 4" in
Features 5
- MULTIPURPOSE - designed to drill concrete, concrete with light steel reinforcement or hard masonry
- HEAVY DUTY - embedded diamond concentration guarantees longer core life and efficient drilling
- ARBOR SIZE - 1-1/4"-7 threaded arbor
- DRILLING DEPTH - 14" drilling depth
- WET/ROTARY MODE ONLY - recommended to use with handheld core drills or dedicated core drill rigs (rotary mode only, no wire mesh drilling)
Description
EDiamondTools, the lead industry for quality construction tooling at an cost effective rate. We are committed to providing only the best, most innovated products at an affordable rate for any type of customers from construction contractors to DIY individuals. We specialize in diamond grinding wheels, diamond core bits, walk behind tooling and diamond saw blades. We look forward to fulfilling all your tooling needs! Wet Diamond Core Bits High Performance Core Bit Extendable Core Drill Bit Crown Core Bits
Specs 23
| Material | Diamond |
|---|---|
| Cutting Diameter | 4" inches |
| Finish Type | Diamond |
| Shank Type | Straight |
| Cutting Angle String | 135 degrees |
| Brand Name | EDiamondTools |
| Model | WBP0400A4 |
| Item Highlight | General purpose, core drill concrete and masonry, 14" drilling depth, wet only, diamond hole saw |
| UPC | 727363140500 |
| Unit Count | 1 Count |
| Number of Packs | 1 |
| Manufacturer | EDiamondTools |
| Part Number | WBP0400A4 |
| Number of Pieces | 1 |
| Item Weight | 16 ounces |
| Item Dimensions | 17.52 x 4.13 x 4.13 inches |
| Minimum Bore Diameter | 0.25 inches |
| Material Type | Diamond |
| Finish Types | Diamond |
| Surface Recommendation | Concrete |
| Tool Flute Type | Straight |
| Point Style | Diamond Point |
| Number of Flutes | 3 |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Nov 16
Yes, absolutely! This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Top Amazon Reviews
Amazing Quality
Size: 4 Inch
I recently used the 4" Wet Drill Core Bit for a demanding concrete project, and it exceeded my expectations. Designed specifically for wet drilling, this bit offers a 10mm segment height and a 14" drilling depth, making it perfect for tackling tough concrete and hard masonry surfaces. The core bit provides smooth and consistent drilling even in the hardest materials. It cuts through concrete and masonry with ease, delivering precise, clean cuts every time. The 10mm segment height allows for enhanced durability, which means this bit will last through multiple tough jobs without wearing down quickly. The overall build quality is impressive. The bit is well-balanced and solidly constructed. Its 1-1/4"-7 Arbor fits perfectly onto the rig without any wobbling, ensuring stability during operation, which is crucial for accurate drilling. Using it in a wet-only environment helps manage heat and dust, contributing to a cleaner, safer workspace. The wet-drilling capability also extends the life of the bit, reducing wear compared to dry drilling. It's ideal for longer jobs where precision and extended use are key. The bit is designed for a wide range of tough materials, from reinforced concrete to hard masonry. Whether you're working on industrial projects or professional-level home renovations, this tool is up to the task. This 4" Wet Drill Core Bit is a reliable, high-performance tool. Its durability, precision, and ability to handle the toughest materials make it an excellent investment for any contractor or professional who needs a reliable bit for concrete or masonry. Highly recommended for anyone needing a solid, high-quality wet drill core bit!
...
show more
Reviewed in the United States on October 22, 2024 by Maggie
Great barrel for the money!
Size: 5 Inch
No issues! A cost-effective alternative to rental or name-brand barrels. I purchased this to drill a series of 5" holes into an old stacked-stone and mortar wall. It cut through the mortar with ease. Naturally, drilling through the natural stone took longer, but the barrel cut through the stone smoothly and with ease. With an extension attached, I was able to drill 24" deep clean holes. It's worth noting that this is a wet-cut-only barrel. Where possible, get a garden host attachment for your core drill to keep the water moving. It keeps dust and temperature down and also continuously flushes the cutting surface to maintain a clean surfance for the teeth. The bit still looks great. No damage to the teeth and wear appears minimal. I trust it will cut many more holes.
...
show more
Reviewed in the United States on April 6, 2025 by HeLa HeLa
Pool Deck
Size: 1-1/8 Inch
Ideal tool - if you're installing a child fence on pool deck YOU MUST rent the vertical drill press to maintain perfect vertical finished product
Reviewed in the United States on May 20, 2025 by Diana
Durable and well made
Size: 8 Inch
Did very well with concrete, but not the steel that is embedded in the concrete, even though the description said it would...
Reviewed in the United States on April 29, 2025 by Cyber2steve Cyber2steve
Worked well!
Size: 3 Inch
Drilled several holes about 6” deep with no issues.
Reviewed in the United States on May 16, 2025 by Amazon Customer
Diameter length 5/8 11 thread only product Amazon offers
Size: 0-1/2 Inch
Drills well through Caribbean Greenstone
Reviewed in the United States on June 18, 2025 by Fred Downey
drill
Size: 0-3/4 Inch
Works awesome right through Granite
Reviewed in the United States on May 1, 2025 by JT
Not good.
Size: 1-1/2 Inch
This core drill broke within the first minute of using it. As you can see in the picture, there must have been almost zero weld holding the center drive plate in. Drill pushed through, and the tiny top cap popped off like a beer tab. Very poor workmanship. Can't recommend at all.
Reviewed in the United States on December 15, 2024 by Amazon Customer Amazon Customer