Best Dt Diatool Masonry Core Drill Bits in 2026

FACHLICH Vacuum Brazed Diamond Finger Bit 20mm Granite Finger Milling Bit

Diameter 20mm, Workable length 50mm, Connection 5/8"-11 thread, Total Length: 65mm,Grit #50/60

Save your money: just one standard core bit plus one our finger bit, you can create many different hole sizes, without buying several different core bits.

2pcs Diameter 6mm/1/4", 5/8-11 connection, Total height 62MM, Max working depth 35mm, Diamond height 10MM

Dry/wet drilling for porcelain tile marble stone masonry brick normal stone.

High quality Diamond Grain provide fast and smooth drilling.

☑Diamond Finger Bit Dimension: Diameter 1-3/8”(35mm), 50mm workable length, Connection 5/8"-11 thread,Total Length: 70mm, Grit #50/60.

☑High Performance：Vacuum brazed technology provide much longer working life (Generally 3-5 times), more Heavy Duty and wear Resistant than electroplated ones,provide very high efficiency,cuts faster,durable and sturdy.

☑Widely Applications: Recommended for enlarging, shaping and/or round bevel existing holes in porcelain tile, ceramics, bathroom tile,marble and countertop with ease,necessary to accomodate pipes or electric wire lines.

Diameter 152mm: 5/8"-11 thread, total length 75mm; diamond height 15mm; max working depth 50mm.

Dry or wet drilling for porcelain tile,ceramic, granite, marble, stone, ect.

Recommend Machine: 5/8" arbor angle grinder. Recommended RPM:3000. Maximum RPM:6000.If you fit them on hand drills, you need an adapter, such as SDS, hex, Round plus shank, etc.Do not use hammer mode.

diameter 6mm 1/4 Inch,diamond length 8mm,Round shank

Multi-purpose drilling for granite & marble, masonry, concrete, tile/ceramic, glass, hard plastic,All-Purpose Drilling

Wax inside for cooling,our Diamond Tipped Drill Bits have wax cores built-in for Cooling and Lubrication.Special Designed with Hole and Groove in the Side of Drill Bit for Removing Stone Chips

It is a versatile milling bit designed to enlarge, shape and/or round bevel existing holes in Porcelain, Hard Ceramic, Granite and Marble.and it's also suitable to easily create round side indentation necessary to accomodate pipes or electric wire lines.

It can be used with any 5/8"-11 Thread standard grinder.

This is a save money tool because with just one standard core bit and this finger bit you are able to create many different hole sizes, without needing to buy several different core bits.

Diameter: 10mm; Workable length: 50mm; Thread: 5/8"-11; Total length: 75mm; Grit #50/60

Save your money: just one standard core bit plus one our finger bit, you can create many different hole sizes, without buying several different core bits.

Attention: not designed to drill holes but to enlarge and milling existing holes.

✔Size --1pc 3/8"(10mm), 40mm workable length, 5/8-11 Thread, Grit #45/50, toal Length 65mm

✔Wide Applications --Recommended for enlarging, shaping and/or round bevel existing holes in porcelain tile, ceramics, bathroom tile,marble and countertop with ease,necessary to accomodate pipes or electric wire lines

✔High Performance --This diamond milling bit helps to be durable and have a long sevice life , you could make hole smoothly with no wandering

Full Size Set: 8 Packs of Dry Diamond Core Drill Bits 2 pieces of 3/16inch (5mm), 2 pieces of 1/4inch (6mm), 2 pieces of 5/16inch (8mm), 1 piece of 3/8inch (10mm) and 1 piece of 1/2inch (12mm)

Dry Drilling Design: Each Diamond Drill Bit is integrated with wax lubricant inside; it will melt and cool the bit tip to prevent diamond loss, let the bit cool after each hole

Clean Holes in Tiles: Dry Diamond Core Bit set equipped with Vacuum Brazed Diamond Technology, able to drill clean holes in all types of tiles, porcelain, granite, ceramic (not for wood)

Versatile Finger Bits designed to Enlarge,Shape and/or Round Bevel existing holes,and also can create and shape half-moon side indentations necessary to accomodate pipes or electric wire lines

Save your money, only 1pc Core Bit and this diamond milling bit,you can create many holes of different sizes without buying any other diamond hole saws in different sizes

Dry and wet use in Porcelain,Ceramic,Granite, Natural Stone,Stoneware,Marble,Marble Tile,Single-fired tiles,Double fired Glazed tile,etc

【Size】Diameter：3/8"(10mm)-1" (25mm), 50mm workable length, 5/8"-11 Thread, Grit:#50/60, total Length 65mm, Recommended 6000RPM,MAX RPM 11000;

【Function】Multi-function, for enlarging, shaping, edging, trimming, side grinding etc. in existing holes Ceramic, Tile, Porcelain, Marble, Granite and other materials.It is not recommended to drill as a drill bit

【Choice】Available in Two Diameters (10MM and 25MM) meet the different needs. You can use only one size core bit and this finger bit to create different size of holes

【Diamond Drill Bit Packaging Includes】10 Pieces of dry diamond drill bits Kit for drilling holes diameter of1/4 inch (6mm).The Larouoba ceramic tile drill bits are extremely heat resistant and efficient due to their special cooling wax filling.

【Unique Cooling Wax】Diamond Drill Bit integrated with wax lubricant inside which melts while dry drilling and cools the cutting surface. This allows for longer drilling without much wear on larger projects.

【Durable & Efficient 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

☪Upgraded Dry Drilling Design : Mgtgbao 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. Surface plating can prevent the drill bit from rusting.

☪Multiple Size Dry Diamond Core Drill Bit: The diamond drill bit set contains 6 pieces of dry diamond bits different sizes, including 1pc 3/16” (5mm), 2pc 1/4” (6mm), 1pc 5/16” (8mm) , 1pc 3/8” (10mm), 1pc 1/2” (12mm) fit your need.

☪Widely Compatibility: black diamond drill is designed in round shank, which is compatible with most machines, such as hand drill, angle grinder, bench drill, also can be matched with side flutes help to remove debris and drill holes smooth and fast; Depth mark is also useful for precise project.

Specifications: 2pc vacuum brazed diamond drill Core bits for porcelain ceramic tile. Hole Saw Diameter 1/4 Inch (06mm), Connection: 5/8-11 arbor.

Vacuum Brazed Diamond Technology: Increasing resistance to temperature and friction, makes the diamond particles better attach to the core steel improving tool life and machine efficiency.

Constructed with high-grade diamond grit for effortless cutting and improved durability in tough applications. U-groove tooth shape and chip removal design of the tile hole cutter ensures you could drill smoothly with no broken edges.

Complete Set of Diamond Drill Bits: This 7-pack includes sizes 3/16" (5mm) x2, 1/4" (6mm) x2, 5/16" (8mm), 3/8" (10mm), and 1/2" (12mm), making it great for a wide range of drilling needs, including glass, tile, ceramics, stones, and masonry brick.

Dry Drilling Innovation: These diamond drill bits feature a wax lubricant on the inside that prevents diamond loss and prolongs the life of the bits. This technology, combined with its integrated coolant system, helps the bit remain cool and dry during use. To maintain optimal performance, we recommend pausing and cooling the bit after each individual hole.

Clean and Precise Drilling: Each bit in the set is designed with vacuum brazed diamond technology to ensure precise and clean drilling in tiles, porcelain, granite, ceramic, glass, marble, stone, and masonry brick (not for wood). The innovative Side Flute design removes debris quickly, and the Depth Mark on the side ensures precise drilling.

🌻Two kind of different 1/4" Diamond dry core bits shank: 5pc 1/4’’ (6mm) hex shank diamond dry core bits and 5pc 1/4’’ (6mm) round shank diamond dry core bits. Meet the needs of experiencing different drilling. Surface plating can prevent the drill bit from rusting.

🌻Dry drilling design: Vacuum brazed 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.

🌻For different kinds of materials: Diamond core bits are worked great for dry drilling holes through hard porcelain tile, ceramics,bathroom tile,granite & marble, masonry, concrete, glass, hard plastic with ease. Using water could prolong the lifetime.

✔Size Diamond drill bit--dry/wet brazed diamond drilling bits Core bits with 5/8-11,25/35/45/65/75mm+20mm Finger Bits+50mm Beveling Chamfer Bit, Each Size 1Pc

✔ATTENTION-this chamfer bit can NOT BE USED TO DRILL HOLES.Wide Applications -- enlarge/shape/round the EXISTING HOLES. Reduce the risk of cracking with standard and large format tiles subjected to tension (ex tightened plumbing, led lights etc),Bevel Ease chamfers and stress relieves rough holes in glass, ceramic and porcelain tiles

✔Wide Application of drill bit --Worked great for porcelain tile, ceramics, bathroom tile,marble granite,stone,masonry, brick with ease,Using water could prolong the lifetime

【Size】：Dia 50mm(2"): workable length 46mm; 5/8-11” thread; Grit #80; Angle: 60 degree

【Application】:The beveling chamfer bit designed to enlarge or trim round holes in ceramic, glass, granite stone tile marble etc. Also suitable to create round shape indentation to accommodate pipes or wires.

【Save your money】:one standard core bit can create many holes of different sizes(0MM-50MM). without buying several different core bits.

【FUNCTION AND USED FOR】 This diamond finger bits are designed to enlarge, shape, trim and round bevel EXISTING HOLES in porcelain tile, marble, ceramic, granite, etc. And also suitable to easily shape side indentation required to pipes or electric wires.

【YOUR CHOICE】 You can use our milling finger bit to expand existing holes to different sizes or shapes, no need to purchase several core drill bits. Great for granite, porcelain,ceramic or marble countertops, bathroom tiles.

【PREMIUM MATERIAL】High hardness and heavily coated diamond with vacuum brazed technology ensure more effective working performance and precise hole finish. Durable metal and premium diamond provide longer working life.

Diameter 25mm(1"), 50mm workable length, Connection 5/8"-11 thread,Total Length: 65mm,Grit #45/50

It is not designed to make holes but to shape and enlarge existing holes in ceramic tile porcelain marble granite.

Just one standard core bit plus one our finger bit, you can create many different hole sizes, without buying several different core bits.

Dry/Wet Drilling, no worry about adding water when in the processing, adding water will prolong the workable lifes, water/Wax(6mm) will cool down the segment

New design of Vacuum Brazed tech. for fast and smooth drilling efficient, designed for save your times, get longer life than tradition coated diamond drill bits

With 5/8"-11 thread, easy operate on the angle grinder; attached round shand adpater for wide application on Hand Drill, Bench Drill, no worrying of looking for adapter

Radiused Tooth Back reduces stress on teeth

Use with water as a lubricant, holes require No futher work as cutting is clean

Sharp gears and anti-cutting with lower consumption make the product a long service life.