The Best Round Core Drill Bits of 2023

1/4" Shank, 1/4" 5/16" 3/8" 1/2" Cutting Diameter, 4-Piece Set.

Blade Material: YG6 carbide; Body Material: 45# carbon steel, provide cleaning and sharp cutting.

Round nose router bits for cutting, beading, fluting and general ornamentation.

Cuts all composition materials, plywoods, hardwoods and softwoods.

Use on CNC and other automatic routers as well as hand-held and table-mounted portable routers.

Route core box channels and grooves for decorative and general use

Premium C3 micro-grain tungsten carbide blades for a sharper & longer lasting edge

For use on CNC, table mount and handheld routers

Silver induction brazing for maximum strength and durability

Satisfaction Guaranteed & Limited Lifetime Warranty

Add Versatility to Your Tool: 5 Pieces of Dry Diamond Core Drill Bits Kit for drilling holes diameter of 1/4 inch(6mm), 3/8inch (10mm), 5/16inch (8mm) and 1/2inch (12mm);

Vacuum Brazed Diamond Technology: Great for drilling clean holes to hard materials especially tiles, porcelain ground, granite ceramic glass mirror marble stone masonry brick (not for wood)

Dry Drilling Design: Diamond Drill Bit integrated with wax lubricant inside which melts while dry drilling and cools the cutting surface; Water can be used as additional cooling to prolong the life of the bit

Unique Details: Diamond coating enhances the drilling speed; Round Shank compatible with most machines such as Hand Drill, Angle Grinder, Bench Drill; Side flutes help to remove debris and drill holes smooth and fast; Depth mark useful for precise project

Worry Free: This Diamond Drill Bits set comes with a portable storage case for convenient use and store. If you encounter any problems in using the products, please feel free to contact us for satisfactory customer service

1-3/8"(35mm) Laser Welded Diamond Dry Drilling Core Bits.

Diameter:35mm(1-3/8 inch), Total length: 100mm, Thread: 5/8"-11.

Dry or Wet Drilling - use wet will greatly prolong the segment life

Designed for drilling hard granite, marble, engineering stone, concrete, brick

Easily operate on Angle Grinder; Need an adapter for drill or other machine, such as SDS,hex,Round plus shank

1 pc 4 Inch Vacuum brazed diamond Dry drilling bit

Diameter 102mm 5/8-11 connection Total height 75MM Max working depth 50mm Diamond height 15MM

Dry/wet drilling for porcelain tile granite marble stone Masonry brick

Machine: Angle Grinder

✔ Satisfied Size - 6mm/0.23", 8mm/0.31", 10mm/0.39", 12mm/0.47", 14mm/0.55", 16mm/0.62", 18mm/0.7", 22mm/0.86", 26mm/1.02", 32mm/1.26"

✔ Ideal Application - This diamond coated core drill bit removes a complete circle from glass, marble, tiles,granite, ceramic or other.They are perfect for drill glass, tile bottles,blocks jars, fiberglass porcelain tile ceramic, slate Mable, granite light stone

✔ Super Material - These diamond drill bits made of high-speed steel that is durable and have a long sevice life,which are high quality and good performance that excellent for making clean and accurate hole.

✔ Sharp&Smooth Cut - Coated with high quality diamond, the diamond hole saw creates a high precision, smooth cut with no broken edges. Reduced drill speeds, low drill pressure and increased use of water lubrication will extend drill bit life considerably

✔ Note - When you using the diamond drill bits, please use lubrication (water),otherwise the diamond core drill will burn.Not for use on Concrete or for depths beyond about 1/2".

We could also ship these bits to from our own American warehose,about 1-6 business days without shipping fees

Dry/wet drilling for porcelain tile, granite, marble, stone, Masonry, brick...

*Diameter 6-16mm：35mm Max working depth, 10mm Diamond height, Total Length 62mm*

*Diameter 19-152mm：50mm Max working depth, 15mm Diamond height, Total Length 75mm*

*5/8"-11 Female Thread, Recommended Machine: angle grinder, If you fit them on electric drill or other machine, you need an adapter*

SDS-Plus Arbor Adapter Hammer Diamond Core Drill Bits Connecting， Perfect accessory for your SDS Plus hammer drill

Made of strong hardness Alloy steel metal, heat treatment, high strength, surface treated, wear resistance, to ensure long service life.High quality electric hammer drill hole connecting rod adapter

Easily convert female arbor to SDS PLUS male， Removable construction, both extender adapter and core drill bit

It's not replace Electric Diamond Drill. Electric hammer only can drilling brick wall

Round Shank Size: 10cm x 2.2cm/3.94" x 0.87" (Approx.) Square Shank Size: 10cm x 2.2cm/3.94" x 0.87" (Approx.)

Industrial Quality Core Box Router Bit, Red or Black Coating

1/4" Shank, 5/8" 3/4" 7/8" 1" Cutting Diameter,4-Piece Set

Carbide tipped for improved speed and long life,Durable, hardened and sharpened

Round nose routers for cutting, beading, fluting and general ornamentation

Quality assurance for 1 years. If there are quality problems within 1 years, you can send us email. We will send you new ones .

Diamond core drill bit adapter for threaded core drill bits hole saw, 1/2" round shank to 5/8" 11 threaded male

Connects to core bits with 5/8" 11 threaded female arbor, and changes to connector to 1/2" round

High quality hardened alloy

Adapter for Drilling and Grinding Concrete, Glass, Granite, Stones

Overall length: 2 1/2", Shank length: 1 1/2"