Powered by Made-in-China.com
Drill Bit for Granite Contertop Hole Thread M14
US$24.00
20 Pieces
Product profile
Customization
AvailableCustomized
CustomizedStandard
ISOModel NO.
BSDLength
60 450Type
Core Drill BitMaterial
DiamondUsage
Well Drilling, Masonry DrillingProduct
Diamond Core DrillConnection
5/8-11Transport Package
Carboard BoxSpecification
56Trademark
BESTOrigin
ChinaHS Code
8207Key features
High Efficiency & Long Life: Welded segmented design ensures fast drilling speed and extended service life without segment breaking.
Versatile Material Compatibility: Ideal for drilling stone, brick walls, concrete, concrete with steel, metal, and granite countertops.
Stable Performance: Provides stable function and performance when cutting hard materials like stone and metal.
Wide Application Scope: Suitable for construction, pipeline installation, and foundation engineering such as highways and tunnels.
Customizable Product: Product and connection types can be customized according to specific requirements.
Company profile

CertifiedBusiness Type: Trading CompanyExport Year: 2017-07-22 CertifiedNearest Port: Xiamen PortAverage Response Time: ≤15h CertifiedTerms of Payment: T/T, PayPal, Western Union CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR
AI-Powered supplier vetting
SummaryQuanzhou Best Diamond Tools Co., Ltd. is identified as a China-based manufacturer/factory and limited company in Fujian, although another record describes the company as a trading company. It focuses on diamond tools for stone and concrete applications, including wire saws, blades, segments, drilling, grinding, and polishing products. The supplier reports ISO 9001 certification, 6–10 R&D engineers, and 6–10 quality-control staff. Export sales account for 90%, with exporting activity reported since 2017 and broad global market coverage. One production line and order fulfillment within 15 working days are stated for both peak and off-peak periods. The supplier claims solution-oriented product selection, after-sales service, timely delivery, and quality inspection. Customer-related trade records identify SIVA GRANITE PRODUCTS and granite wire saw transactions, but the available evidence is limited.
CertificationsThe supplier explicitly reports holding ISO 9001 certification. This is direct evidence of a certified quality-management system and supports a positive assessment for certification holding.
After-Sales capabilityThe supplier states that it provides after-sales service and maintains client relationships, while also describing patient pre-order communication and solution support for customer requirements. These statements provide explicit evidence of a stated after-sales and customer-support capability, although no service metrics or case outcomes are supplied.
R&D capabilityThe supplier claims newly developed technology and reports 6–10 R&D engineers. Its description also states that it expanded into stone machinery exports in 2019 to improve product selection, providing some evidence of technical development and application knowledge.
Production capacityThe supplier offers a broad range of diamond tools and reports one production line, with order fulfillment within 15 working days in both off-peak and peak seasons. These stated production and lead-time capabilities support a positive assessment, although capacity scale and output details are limited.
Customization capabilityThe supplier describes discussing material hardness, abrasiveness, machine power, speed, processing problems, and customer expectations before selecting suitable tools. This directly supports application-specific solution and customization capability.
Client casesTrade records associate the supplier with SIVA GRANITE PRODUCTS and identify granite wire saw products shipped through Xiamen, including two listed product configurations. These are explicit customer-related transaction records, though they provide limited detail on project scope, performance, or repeat-business outcomes.
Product Q&A
Q:What is the main usage of this diamond core drill bit?
A:
It is mainly used for large drilling projects, including drilling holes in stone, concrete walls, and granite countertops for water, electricity, heating, and gas pipelines.
Q:Does this drill bit require water during operation?
A:
Yes, this is also called a water drill bit, so you need to add water when using it to ensure proper cooling and drilling efficiency.
Q:What types of machines are compatible with this drill bit?
A:
It is suitable for 5-axis CNC integrated stone machines, fixed drilling machines, and hand-held drilling machines.
Q:What materials can this diamond core drill bit cut?
A:
It is applicable for drilling stone, brick walls, concrete, concrete with steel, metal, and walls.
Q:What are the key features of this diamond hole drill?
A:
Key features include high efficiency, long life, no breaking of segments, and stable function and performance.
Send Inquiry
*To:
Quanzhou Best Diamond Tools Co., Ltd.
Quanzhou Best Diamond Tools Co., Ltd.*Content:
Supplier replies will be sent to your registered email
You may also like
Diamond Core Bit Hole Saw for Granite Marble Opener Masonry Drilling Drill Bits
US$1.44-1.61
10 Pieces(MOQ)
10mm M14 Vacuum Brazed Diamond Hole Saw Drill Bit for Granite Marble Brick
US$2.70-2.90
30 Pieces(MOQ)
35mm M14 Thread Quick Brazed Diamond Core Drill Bit for Marble Granite
US$6.86-10.29
240 pieces(MOQ)
Vacuum Brazed Diamond Drilling Core Bits Ceramic Tile Glass Hole Saw Drill Bits with M14 Thread
US$3.00-3.10
50 Pieces(MOQ)
Marble Opener Diamond Core Bit Hole Saw Drill Bit for Marble Granite Drilling
US$1.44-1.61
10 Pieces(MOQ)
M14 Vacuum Brazed Drill Bits for Granite Porcelain Dekton Diamond Drill Bits
US$3.00-5.00
5 PCS(MOQ)
Hex M14 Thread Sharpness 6mm Diamond Core Drill Bit for Marble Granite
US$1.29-1.93
1,200 pieces(MOQ)
Premium Hole Saw for Granite Drill Bit
US$15.00-25.00
5 Pieces(MOQ)
M14 Thread Shank 20mm Dry Vacuum Brazed Hole Saw Diamond Coated Drill Bits for Tile Porcelain Ceramics
US$3.30-3.45
10 Pieces(MOQ)
55mm M14 Thread Premium Diamond Core Drill Bit for Concrete Marble Granite
US$7.14-10.71
200 pieces(MOQ)
M14 Thread Hole Saw Center Drill Bit for Stone Cement Wall Drilling
US$1.21-1.29
500 Pieces(MOQ)
Hex 18mm M14 Thread Good Granite Core Drill Bit for Marble Ceramic
US$3.57-5.36
400 pieces(MOQ)
Diamond Core Drill Bit Basin Opener Flume Basin Sink Hole Saw for Porcelain Marble Granite
US$1.44-1.61
10 Pieces(MOQ)



















