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China factory - ZHANGJIAGANG FLAME MACHINERY CO.,LTD.

ZHANGJIAGANG FLAME MACHINERY CO.,LTD.

  • China,Yangzhou
  • Verified Supplier

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China High-Accuracy Metric Core Drill Bits | Perfect Concentricity for Precision
China High-Accuracy Metric Core Drill Bits | Perfect Concentricity for Precision

  1. China High-Accuracy Metric Core Drill Bits | Perfect Concentricity for Precision
  2. China High-Accuracy Metric Core Drill Bits | Perfect Concentricity for Precision
  3. China High-Accuracy Metric Core Drill Bits | Perfect Concentricity for Precision
  4. China High-Accuracy Metric Core Drill Bits | Perfect Concentricity for Precision
  5. China High-Accuracy Metric Core Drill Bits | Perfect Concentricity for Precision
  6. China High-Accuracy Metric Core Drill Bits | Perfect Concentricity for Precision

High-Accuracy Metric Core Drill Bits | Perfect Concentricity for Precision

  1. MOQ: 100pcs
  2. Price: $1.45-30.68/pcs
  3. Get Latest Price
Type Core Drill Bit
Shank type Weldon shank,Weldon/Quick-in/Thread Shank
Material HSS M35
Color Any Available Color
Usage Drillimg Holes Drill Bit,High Speed Cutting,Steel Hole Cutter
Diameter 12-100mm,12MM--100MM(1/2"-- 4")
Supply Ability 60000PCS PER DAY
Payment Terms T/T, L/C, D/P, Western Union
Product name one-touch shank HSS-E Annular cutter
Delivery Time 30-35days
Use core drill,HSS annular cutter in heavy duty
Application Steel,Copper,Drilling Holes,metal drilling,Iron
Coating TIN COATING OR NON COATING,TiAlN,TIN/TiAIN/AlCRN
Packaging Details Plastic tube
Packing Plastic Tube
Brand Name XRTOOLS
Model Number 45MM
Place of Origin YANGZHOU
Certification ISO9000

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  1. Product Details
  2. Company Details

Product Specification

Type Core Drill Bit Shank type Weldon shank,Weldon/Quick-in/Thread Shank
Material HSS M35 Color Any Available Color
Usage Drillimg Holes Drill Bit,High Speed Cutting,Steel Hole Cutter Diameter 12-100mm,12MM--100MM(1/2"-- 4")
Supply Ability 60000PCS PER DAY Payment Terms T/T, L/C, D/P, Western Union
Product name one-touch shank HSS-E Annular cutter Delivery Time 30-35days
Use core drill,HSS annular cutter in heavy duty Application Steel,Copper,Drilling Holes,metal drilling,Iron
Coating TIN COATING OR NON COATING,TiAlN,TIN/TiAIN/AlCRN Packaging Details Plastic tube
Packing Plastic Tube Brand Name XRTOOLS
Model Number 45MM Place of Origin YANGZHOU
Certification ISO9000
High Light precision hss annular cutterprecision magnetic drill bitsm35 hss annular cutter

Problem: The Cost of Secondary Finishing

Many industrial workshops suffer from "rough" holes. When a drill produces burrs or an inaccurate diameter, workers have to spend extra time deburring or reaming the hole so that bolts can fit. In high-precision assembly, a hole that is even 0.1mm out of round can lead to structural rejection and massive financial loss.

 

 

 

Cause: Vibration & Asymmetrical Cutting

 

Inaccurate holes are usually caused by asymmetrical grinding. If one cutting tooth is slightly higher than the others, the tool will "walk" or vibrate. This vibration creates a jagged surface finish and forces the hole to become oversized, making it impossible to achieve a precision fit.

 

Solution: Full CNC Multi-Cut Geometry

 

We manufacture our cutters using state-of-the-art 7-Axis CNC grinding centers. This ensures every tooth is perfectly symmetrical. Our unique Three-Stage Cutting Geometry shears the metal in layers, resulting in a mirror-like finish on the hole wall. The precision is so high that secondary deburring is almost never required.

 

 

Technical Parameters

 

  • Manufacturing Process: 100% Fully CNC Ground

  • Tooth Geometry: Triple-Edge (Internal, Middle, External)

  • Diameter Accuracy: +0.02mm / -0.00mm

  • Surface Finish: Ra 1.6 - 3.2

  • Concentricity: <0.05mm

  • Material: HSS-M2 / M35

 

Application: Precision Assembly & Custom Fabrication

 

This series is designed for aerospace ground equipment, custom automotive chassis work, and high-end architectural metalwork. It is the preferred choice for labs and medical device manufacturers where every thread and bolt-hole must be perfect.

 

 

Selection Guide

 

When the project specification calls for "Burr-Free" or "Precision Fit," this CNC Ground series is the only choice. It is particularly effective for thinner materials where "tearing" is a common problem with lower-quality cutters.

 

 

 

Professional FAQ

 

Q: Why does the hole look polished?

 

A: Our triple-edge geometry cuts the metal cleanly rather than ripping it, which results in a much smoother surface.

 

Q: Does this help with bolt alignment?

 

A: Absolutely. The perfect roundness ensures that bolts pass through multi-layered plates without resistance.

 

Q: Is the shank also ground?

 

A: Yes, the Weldon shank is precision ground to ensure zero-slip and perfect alignment in the drill chuck.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Exporter,Trading Company

  • Year Established:

    2018

  • Total Annual:

    500-600

  • Employee Number:

    135~150

  • Ecer Certification:

    Verified Supplier

Jiangsu Xing Rui Precision Tools Co., Ltd. is a leading manufacturer of high-quality cutting tools in China, established in 2008 and located in Danyang, Jiangsu Province—a major hub for cutting tool production with convenient transportation for global logistics. Main Products We speciali... Jiangsu Xing Rui Precision Tools Co., Ltd. is a leading manufacturer of high-quality cutting tools in China, established in 2008 and located in Danyang, Jiangsu Province—a major hub for cutting tool production with convenient transportation for global logistics. Main Products We speciali...

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Get in touch with us

  • Reach Us
  • ZHANGJIAGANG FLAME MACHINERY CO.,LTD.
  • No. 16 Wenchang Road, Huicun Village, Dinggou Town, Jiangdu District, Yangzhou City,Jiang Su Province.
  • https://www.hss-drillbit.com/

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