What's the delivery time ?

Sample order production estimately a week, bulk order around 15 days, Specific orders need to be discussed.

How do you guarantee the quality ?

We have strict quality control process from raw materials selection to segment productions,welding process and finished items to make sure the bits are qualified before ship.

Heavy-Duty 135mm-400mm Diameter Core Bit for Drill Concrete Holes

Name: Heavy-Duty 135mm-400mm Diameter Core Bit for Drill Concrete Holes
Brand: Hebei Golden Finger Tools Co., Ltd.
SKU: 2183515952

Hebei, ChinaHebei Golden Finger Tools Co., Ltd.

US$10.00

10-99 Pieces

US$9.00

100-999 Pieces

US$8.00

1,000-4,999 Pieces

US$6.00

5,000+ Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Customized

Standard

DIN, ISO

Model NO.

Length

350mm/450mm/500mm

Type

Core Drill Bit

Material

Diamond

Usage

Masonry Drilling, Reinforced Concrete

Product Name

Diamond Hole Saw

Weld Type

Laser Welded

Segment Type

Arix,Turbo,DOT,Rooftop,Rooftop Mesh,Crown Segment

Color

Custom Colors

Transport Package

Bubble Wrap+Box or Customized

Specification

25mm-400mm

Origin

China

HS Code

8207501000

Production Capacity

200000 Per Year

Key features

Laser welding creates a stronger bond between the diamond segments and steel body, providing higher safety and longer service life compared with conventional welding methods.

Premium diamond segments ensure smooth drilling performance and high cutting efficiency, even when drilling through reinforced concrete with steel rebar.

Optimized diamond concentration and segment formula reduce wear and extend tool lifespan, lowering operating costs for professional users.

The precision-engineered steel tube minimizes vibration and improves drilling accuracy.

Compatible with most professional core drilling machines: 1-1/4" UNC M22 1/2 BSP

Company profile

Product CertificationR&D CapabilitiesCustomization from SamplesExhibition Experience

Hebei Golden Finger Tools Co., Ltd.

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 7 Years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤1.81h

About Our Factory & Business Background

AddressNo. 29, Yucai Middle Road, Beigao Village, Nangaogang Subdistrict, Luancheng District, Shijiazhuang City, Hebei Province, China

Plant Area3650 square meters

Number of Employees40

Registered Capital5,000,000 RMB

Terms of PaymentLC, T/T, D/P, PayPal

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Minimum Order Quantity100

Supply Chain Partners7

Our Production Capability & Technical Expertise

Main ProductsDiamond Core Bit

Production Lines3

Production MachinesMixing Machine, Molding Machine, Sintering Machine, Laser Welding Machine, High-Frequency Automatic Welding Machine, Shot Blasting Machine, Marking Machine, Granulator, High-Frequency Welding Machine

QA/QC inspectors3 people

Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsFinished product checked by packing staff

R&D Engineers3 people

Traceability of Raw MaterialsYes

Own BrandYes

Our Industry Experience & Global Business Record

Year of Establishment2019-01-23

Main MarketsEurope, Southeast Asia/ Mideast, Africa, East Asia(Japan/ South Korea), Australia, Domestic, South Asia

Repeat Buyers Choice50%~80%

Number of Foreign Trading Staff6

Overseas Agent/BranchNo

New Products Launched in Last yearNo

Our Certifications, Standards & Industry Recognition

Management System CertificationISO9001:2015

Product CertificationCE

Cooperated with Fortune 500No

Product Q&A

Q:Are you trading company or manufacture ?

We are direct manufacture of Laser welding & High Frequency Welding diamond core bit.

Q:Where's your factory located ?

Our factory is located in Luancheng district, Shijiazhuang city,Hebei province,China. It's very near to Xingang Port,Tianjin.

Q:Do you supply OEM Service ?

Yes, we supply OEM services, custom LOGO, Color , length, segment type,etc.

Q:Do you supply sample before bulk order ?

Yes we can supply sample to test the quality before you take bulk order.

Q:What is your MOQ ?

We supply both wholesale and retail,so MOQ 1 piece will work, but as you know the more you take the cheaper of the price,retail and wholesale there's have different rules.