Your Professional Hammer Drill Bit Supplier
Danyang GM Tools Co., Ltd., located in Danyang City, Jiangsu Province, China, is a professional manufacturer of precision cutting tools. Our modern 8,000 m² factory is equipped with advanced CNC machines, precision grinders, and heat-treatment equipment. Our experienced team of engineers, production staff, and quality inspectors ensures high-quality manufacturing and strict quality control. We specialize in standard and customized twist drills, power tools, saws, and hand tools for industrial applications such as metalworking, machinery, automotive, and mold making. With an overseas plant in Malaysia, we support global customers by reducing import costs and ensuring timely delivery. We are committed to reliable, long-term partnerships.
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![12PCS SDS PLUS Hammer Drill Bit Set for Concrete]()
12PCS SDS PLUS Hammer Drill Bit Set for ConcreteName: 12PCS SDS PLUS hammer drill bit set for concreteview more
Material: #45 carbon steel as basic body, TCT as tip. Connected them by welding.
Flute: single flute, we also can do double flute if you want.
Tip Type: single... -
![17PCS Hammer and Chisel Drill Bit Set]()
17PCS Hammer and Chisel Drill Bit SetName: 17PCS hammer and chisel drill bit set packed in aluminum boxview more
Material: #45 carbon steel as basic body, TCT as tip. Connected them by welding.
Flute: single flute, we also can do double flute if you want.
Tip...
Why Choose Us
Sales Market
Our products are exported to numerous regions—including the Americas, Europe, the Middle East, and Asia—where they have garnered widespread acclaim.
Our Certificate
ISO 9001, CE, and RoHS certified, with 100% quality guarantee and strict quality control processes.
OEM/ODM Capability
Customized solutions provided quickly by our dedicated engineering team according to client specifications.
Quality Assurance
We provide a 100% quality guarantee to our customers. Any quality issues are fully our responsibility, ensuring reliable and worry-free products.
Hammer Drill Bit
Hammer drills are designed to quickly drill through brittle materials like concrete by combining the rotary action of the drill bit with a hammer action that moves the drill bit in and out of the hole along the bit’s axis to provide a pounding action along with the drilling motion of the bit.They work with a couple of different mechanism designs, but ultimately the drill’s effectiveness is only as strong as its drill bit. With that dual action in a tough building material like concrete, the drill bit itself has to withstand incredible pressure.
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Material |
#45 carbon steel as basic body, TCT as tip. Connected them by welding. |
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Flute |
Single flute, we also can do double flute if you want. |
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Tip Type |
Single tip, also have other tip for you choose such as cross tip, Y tip etc. |
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Surface treatment |
Sand blast |
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17PCS hammer and chisel drill bit set Size |
SDS PLUS Bit(Metric): 5x110mm, 6x110 mm, 8x110 mm, 10x110 mm, 6x160 mm, 8x160 mm, 10x160 mm. 12x160 mm, 8x210 mm, 10x210 mm,12x260 mm, 14x260 mm |
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Point Chisel |
14x140 mm ,14x250 mm |
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Flat Chisel |
14x140x20 mm, 14x250x20 mm, 14x250x40 mm Grooving Chisel |
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Mark |
Mark size, logo or brand on shank by stamping or lasering. |
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Shank |
SDS PLUS. SDS MAX. and we also can do masonry drill. |
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Package |
12PCS packed in aluminum box; |
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Brand |
GMTOOL, We also accept custom customers' brand (OEM). |
Faster Drilling Speed
Thousands of BPM pulverize concrete and masonry up to 30% faster than a standard drill — saving time on every hole.
Dual Rotary + Hammer Action
Rotation combined with forward hammering breaks material at the point of contact, making it far more efficient on concrete, stone, and brick than cutting alone.
Superior Durability
Tungsten carbide tips or fully hardened bodies (SDS-Plus/SDS-Max) withstand extreme impact — lasting up to 3× longer than standard masonry bits.
Secure Bit Retention (SDS)
SDS shanks lock into the chuck without tightening, using a spline system that prevents loosening, transfers 100% energy to the bit, and allows instant bit changes.
Efficient Chip Evacuation
Deep spiral flutes continuously remove debris, preventing clogging and heat buildup for clean holes — even in deep or dense materials.
Versatile — Two Tools in One
Switch the hammer off and the same bit drills wood, metal, and plastic — a perfect all-in-one solution for occasional masonry work.
Less Operator Effort
The percussive action does the heavy lifting, so you need far less downward pressure — reducing fatigue and improving control.
Type of Hammer Drill Bit
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Masonry Bits
These are the go-to bits for hammer drills, thanks to their tough carbide tips capable of pulverizing hard materials like concrete and stone.
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SDS (Slotted Drive System) Bits
Designed specifically for hammer drills, SDS bits provide a secure fit and are capable of handling the rapid hammering action.
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Spade Bits
While not as common, spade bits can be used with hammer drills for making large holes in wood, especially in a rough construction setting.
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Carbide-Tipped Bits
Known for their durability, these bits are another excellent choice for drilling into hard materials.
The Anatomy of Hammer Drill Bit
The Shank
The shank is the portion of the drill bit that fits into the hammer drill collar and holds it securely as the drill provides both rotation and impact during operation. For most rotary hammer drills, a smooth shank is insufficient because the drill bit can slip during operation and come loose from the drill itself.
The Land
The land is essentially the raised portion of the spiral portion of the drill bit. The land holds the cutting edges of the bit on its outside diameter.
The Flute
The flute on a drill bit is the “trough” that runs parallel to the land. Its purpose is to remove dust from the hole as it is being drilled to prevent jamming.
The Head
The head is the lead point of the drill bit that holds the tip and provides maximum impact in breaking up the concrete. It will also have two or four flat angles (depending on the number of flutes) for the lead-cutting action into the concrete.
The Tip
For concrete drill bits (and others), carbide is bonded to the drill bit head to harden and strengthen it for breaking up the concrete. Extreme heat in the drilling hole can sometimes cause damage to the carbide tip, dulling it or melting it away completely, reducing the bit’s ability to break the concrete.
Design of Hammer Drill Bit
Two-cutter Tips
More common in lighter-duty SDS Plus bits. Ideal for brick and blockwork where rebar isn’t a concern, offering speed and efficiency without the extra cost.
3-Cutter Chisels
Designed for more heavy-duty drilling, such as concrete, stone, and masonry where there might also be rebar.
Pointed Chisels
For breaking through masonry.
Flat Chisels
Best for stripping tiles, or breaking sections of concrete with a clean edge.
Spade Chisels
Designed for wider demolition tasks, such as breaking up floors or removing large surface areas of dense material.
U-type Chisels
For carving or shaping curved channels, as opposed to straight cuts.
Comb Chisels
For surface preparation - such as roughing up concrete or stone surfaces, removing plaster or adhesive - before applying new layers like render or plaster.
Bent (cranked Shaft) Chisels
Feature a bent end that provides better leverage and access when working on surfaces in awkward spaces.
Tile Chisels
For lifting floor or wall tiles, and removing old adhesive and grout.
Maintenance
Clean after use
Dust, slurry, and debris should be removed from the flutes after each drilling session. Blocked flutes reduce dust extraction, increase friction, and generate heat that can further accelerate the wear of your bits.
Correct storage
Store bits in a dry, protective case or rack to prevent rust and corrosion on your drill bits.
Monitor tip condition
Carbide and hardened tips wear gradually under repeated impact and drilling. Worn or rounded tips reduce drilling speed, increase the overall effort to use, and may damage the material. Make sure to replace bits promptly when they become significantly worn.
Avoid overheating
Prolonged continuous drilling without pauses can cause the bit to overheat, softening the tip and weakening the bond between tip and shank. Allow the bit to cool periodically during extended use.
FAQ
We're well-known as one of the leading hammer drill bit manufacturers and suppliers in China, also support customized service. Please feel free to buy high quality hammer drill bit made in China here from our factory. Contact us for free sample.
masonry drill bit for concrete stone, chisel, hammer drill pieces
