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Quick Details

  • Place of Origin: China (Mainland)
  • Brand Name: JINRUI
  • Model Number: JR103
  • Type: Twist Drill Bit
  • Material: Tungsten Carbide
  • Use: Metal Drilling
  • Flute length: 16mm - 51mm
  • Flutes diameter: 3mm - 12mm
  • Overall length: 46mm - 100mm
  • Shank diameter: 3mm - 12mm
  • Helix Angle: 30°
  • Coating: Nano coating
  • Product's name: JR103 carbide drill bits for hardened steel
  • Similar function products: JR101, JR102
  • Scope of application: Ordinary steel & difficult materials
  • Scope of business: OEM; FOB, C&F is ok

Packaging & Delivery

Packaging Details Packaging of carbide drill bits for hardened steel:
1pc/polybox + carton(as per customer's requirements)
Delivery Time 5 workdays after receiving the payment


Carbide drill bits for hardened steel:
1.Tungsten carbide
2.Suitable for process difficult materials.
3.HRC 40 - 60.

Product Description

1. Standard Size / Specification:


DescriptionItem no.θFlute diameter
Shank diameter
Flute length
Overall length
carbide drill bits for hardened steelJR102-03030°331646
material: tungsten carbideJR102-05530°5.55.52662

JR103  3mm - 12mm solid carbide drill bits for hardened steel

   carbide drill bits | solid carbide drill bits | drill bits for hardened steel



2.Structural drawings




Other drill bits






Packaging & Shipping


1. Our package (Four steps only and two packaging schemes )





2. Our type of shipping


1) We offer as many shipping options as possible which including TNT, UPS, DHL, Fedex and EMS etc.


2) If you want shipped by sea, please inform us in advance.


3) Currently, we can do FOB HK/SHENZHEN and Ex-W SHENZHEN.


4) For any other delivery terms,pls feel free to contact salesman leven.


Jinrui Services


1. We can manufacture tools according to your needs(sample or drawing welcomed)

2. Primary competitive advantages are well and high quality control/prompt delivery/competitive prices/OEM  accepted

3.  Application:Applied in aerospace, cars, horologe, stainless,glass,cellphone, electron and medical apparatus and instruments.

Transaction History of the Supplier

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Transaction Overview


Transaction Details

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Transaction Value
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Trade Assurance
China (Mainland)
Transaction Level:
Supplier Assessments:
10 Transactions 20,000+
The supplier’s transactions conducted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $30,000
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