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127mm Brazed Diamond Concrete Core Drill Bits with Great Wall Segments From Made in China
US$8.45
10-199 Pieces
US$6.97
200-999 Pieces
US$2.58
1,000+ Pieces
Product specifications
Diameter
Colour
Total length
Sample price:US$10.00/piece.Request sample
Product profile
Customization
AvailableType
Core DrillUsage
Masonry Drilling, Concrete Drilling,Construction, Plumbing, HVAC, ELModel NO.
KN2413Certification
ISO9001-2015Drilling Type
Wet DrillingDiameter
16-300mmTotal Length
450mm / 460mm / 600mm / 1000mmWorking Length
400mm / 420mm / 550mmSegment Height
8mm/9mm/10mm/13mmConnection Type / Thread Size
1-1/4"-7 Unc / M14 / Round Shank / Hex ShankWelding Technology
Laser Welded / Silver Brazed / SinteredApplicable Material
Reinforced Concrete, Brick, Block, Stone, AsphaltApplicable Equipment
Core Drill Rig / Angle Grinder / Handheld DrillRecommended Rpm
300-600 Rpm (Concrete) / 800-1500 Rpm (Masonry)Transport Package
Carton BoxSpecification
450mm/500mmTrademark
KannonOrigin
China, HebeiHS Code
8207501000Production Capacity
5000PCS/DayKey features
Wet bit removes chips,cools the drill bit during operation, prevents burnt and jammed bits, increases drilling speed by over 30%, and achieves dust-free and environmentally friendly constructions.
Dry bit suffers from problems:high dust levels, easy burnout,tooth breakage when encountering steel bars. Wet bit uses water flow to cool the bit, ensuring smooth drilling of steel bars with zero dust
With a diamond concentration increased to 30%, a single drill bit can drill more than 90 holes, and its lifespan is more than 40% longer than that of conventional dry drill bits.
For applications: air conditioning,plumbing,fire protection, floor slab and road/bridge sampling, a wet core bit can achieve smooth, unobstructed holes, reducing subsequent repairs.
Wet drilling uses continuous water cooling to keep drilling uninterrupted, doubling efficiency and producing cleaner hole walls, making it the first choice for professional construction teams.
Company profile
Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableAverage Response Time: ≤2.54h
AI-Powered supplier vetting
SummaryThe supplier is presented as a diamond core bit, diamond blade, and TCT blade manufacturer that also provides OEM and ODM services. It reports exports to more than 27 countries and participation in the FEICON BATIMAT trade show, but has no overseas agents, branches, warehouse, or showroom. Its management certifications include ISO 9001, ISO 14001, ISO 45001:2018, and ISO 9001:2015, with CE product certification capability. Service procedures for complaints and corrective actions are documented and followed. However, the supplier lacks raw-material traceability, has no valid manufacturing contract with related subcontractors, and lacks outsourcing procedures and ongoing production quantity reconciliation. Innovation evidence is limited: no SDK, no new products in the past year, and no 3D software design service, although ODM and flexible customization are available. Financial evidence is insufficient because the provided entries contain years rather than financial results.
Supplier typeThe supplier is identified as a manufacturer of diamond core bits, diamond blades, TCT blades, and related drilling/cutting products. It provides OEM and ODM services, exports to more than 27 countries, and offers flexible customization, but has no overseas agents, branches, warehouse, or showroom.
CertificationsThe supplier reports ISO 14001, ISO 45001:2018, ISO 9001:2015, ISO 9001, and CE certification capability. These entries provide explicit evidence of multiple management-system certifications and CE-related product certification capability.
After-Sales capabilityThe supplier has clear procedures and followed records for corrective and preventive actions and customer complaint handling, and reports quality assurance in quality control. However, it lacks raw-material traceability and identification, which is a control weakness relevant to service resolution and product follow-up.
R&D capabilityThe supplier offers ODM and customization from designs, but explicitly has no available SDK, no 3D software design service, and no new product developed in the past year. The evidence indicates limited demonstrated innovation capability despite design-related service offerings.
Production capacityThe supplier reports two production lines and equipment including a saw blade press machine, shot blasting machine, and spray painting production line, with one-month average lead times in both peak and off-season. However, it lacks a valid manufacturing contract with related subcontractors, does not perform ongoing production quantity reconciliation, and has no outsourcing SOP.
Customization capabilityThe supplier explicitly provides OEM services for well-known brands, ODM services, customization from customer designs, and flexible customization. These statements directly support a positive assessment of customization capability.
Product Q&A
Q:What is the standard total length of your diamond core bits? Can I get longer ones for thick walls?
A:
Our standard total length is 460mm with an effective drilling depth of approximately 400mm, which covers most standard residential and commercial wall thicknesses.
For thicker walls and foundation work, we also stock 500mm, 600mm, and 1000mm lengths. Custom lengths are available upon request.many of our OEM partners order specific lengths to match local building codes.
Q:Should I choose wet drilling or dry drilling core bits for my project?
A:
Wet drilling is strongly recommended for most professional applications, it extends bit life, suppresses harmful silica dust, and keeps the bit cool during prolonged use.
We recommend wet bits for reinforced concrete and holes deeper than 150mm. Dry bits are suitable for outdoor jobs where water access is limited or for shallow, quick penetrations in brick and block.
We manufacture both types and can help you select the right bond formulation for your specific application.
Q:What is the difference between laser-welded and sintered diamond core bits? Which is better?
A:
Laser-welded segments provide superior adhesion and thermal stability under continuous wet-drilling conditions, making them ideal for reinforced concrete and high-intensity professional use.
Sintered (metal-bond) bits offer exceptional longevity, lasting 20 to 30 times longer than bonded diamond bits when used correctly ,and excel in very hard materials like granite and engineered stone.
Q:What is your Minimum Order Quantity (MOQ) for diamond core bits? Can I mix different sizes in one order?
A:
Our standard MOQ is 50 pieces for common sizes (16mm to150mm). For larger diameters (150mm to 300mm) or segmented that require new molds, the MOQ is typically 200 units.
You can mix different diameters in one order as long as the total quantity meets the MOQ ,this is very common among our distributor partners who stock multiple sizes for local markets.
Q:Can I get a sample before placing a bulk order? How much does it cost?
A:
Absolutely. We encourage all new buyers to test samples first.
We can send existing samples within 3 to 5 working days.
Sample fees vary by size, small diameter bits (16 to50mm) are typically provided at cost price, while larger bits may be charged at the standard unit price.
The sample fee can be refunded against your first bulk order. You only need to cover the shipping cost.
Send Inquiry
*To:
Hebei Kannon Tools Co., Ltd
Hebei Kannon Tools Co., Ltd*Content:
Supplier replies will be sent to your registered email
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