Gold Member Since 2013
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Quanzhou Sunny Superhard Tools Co., Ltd.

Diamond Core Drill Bit, Concrete Conre Bit, Core Drill Bit manufacturer / supplier in China, offering 450mm Diamond Core Drill Bit Tool for Drilling Reinforced Concrete, Lavina Type Metal Boned Polishing Pad, Diamond Abrasive Grinding Cup Wheel for Concrete and so on.

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Supplier Homepage Product Diamond Drilling Tools 450mm Diamond Core Drill Bit Tool for Drilling Reinforced Concrete

450mm Diamond Core Drill Bit Tool for Drilling Reinforced Concrete

FOB Price: US $2.3-23 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $2.3-23/ Piece
Get Latest Price
Port: Xiamen, China
Production Capacity: 50000PCS/Month
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: core drill bit 003
  • Certification: SGS, BV, ISO
  • Type: Core Drill Bit
  • Usage: Masonry Drilling, Drilling
  • Kind: Diamond Drill
  • Diameter(mm): 6 - 400
  • Connection: M14 5/8′′-11 G1/2′′, Straight Shank
  • Advantage: Quality & Price
  • Trademark: SUNNY
  • Specification: SGS, ISO, BV
  • HS Code: 82075010
  • Customized: Non-Customized
  • Length: Stub-length
  • Material: Diamond
  • Manufacturing Arts: Welding
  • Saw Blade External Diameter: 18-400mm
  • Segment Height(mm): 8 - 10
  • Working Length(mm): 60-500
  • Company Website: HTTP://Www.Sunnytools.Biz/
  • Transport Package: Waterproof Carton
  • Origin: Quanzhou, China
Product Description
450mm Diamond Core Drill Bit Tool for Drilling Reinforced Concrete
450mm Diamond Core Drill Bit Tool for Drilling Reinforced Concrete
Construction Core Drill Bit 

Core drill bit are produced to drill dimensionally accurate bore holes in these materials, reinforced concrete, asphalt,masonry,natural and artificial stone. Widely used in the building,heating,sanitary and electrical industries.
Features: 
1. high diamond concentration,fast drilling rate,easy cutting and long service life.
2. Pre-sharpened diamond segments provide immediate usability.


450mm Diamond Core Drill Bit Tool for Drilling Reinforced Concrete
BASIC INFO
 Brand SUNNY
 Product Name450mm Diamond Core Drill Bit Tool for Drilling Reinforced Concrete
 Item No.SY-DCD-313
 Diameter

 
25mm-598mm
 Material Diamond
 Origin Quanzhou, Fujian, China
 Features
1: high diamond concentration,fast drilling rate,easy cutting and long service life.
2: Pre-sharpened diamond segments provide immediate usability.

 
 Application Used for reinforced concrete, asphalt,masonry,natural and artificial stone.
450mm Diamond Core Drill Bit Tool for Drilling Reinforced Concrete
 
Diameter(mm)Effective length(mm)ConnectionSegment shape
φ25~φ598     L350-L6001.1/4"UNC
R 1/2"
spire
turbo
normal
450mm Diamond Core Drill Bit Tool for Drilling Reinforced Concrete450mm Diamond Core Drill Bit Tool for Drilling Reinforced Concrete450mm Diamond Core Drill Bit Tool for Drilling Reinforced Concrete
 

Diamond Core drill Bit--FAQ and Troubleshooting
SUNNY has prepared this guide to help you find, identify and resolve the problems which you may encounter with diamond drill bits.

The majority of problems encountered arise from:

  • the use of a drill bit not suited to the job,
  • the incorrect use of a drill bit,
  • equipment faults.

The tool will not cut

SymptomCauseRemedy

The tool will not cut.

The material is too hard for the diamond specification.Match the diamond specification to the material.
The bit is glazed (smooth diamonds).Re-sharpen the tool by drilling into abrasive material (sandstone, block etc.)
Excessive speed of rotation.Adjust speed of rotation.
The cooling is excessive and causes the tool to aquaplane.Reduce the water flow.
Excessive play within the carriage guides.Adjust the carriage on the slide to reduce play.
The weight on the tool is insufficient.Increase the weight on the tool.
The machine is badly fixed.Check that the machine's fixing is correct.
The motor is too weak.Match the motor power to the diameter.
Excessive wear of diamond segments.
symptomcauseremedy

Excessive wear of diamond segments.

Insufficient irrigation.Adjust the water flow.
Insufficient speed of rotation.Adjust speed of rotation.
Excessive speed of advance.Reduce speed of advance.
The material is more abrasive than expected.Use a blade with a harder diamond specification (see drill-bit selection table).
Too much motor power applied to the tool.Match the motor power to the drill diameter.
Too much play on the machine causing vibrations.Check the state of the machine.
Excessive wear of the bit's steel tube.
SymptomCauseRemedy

Excessive wear of the bit's steel tube.

The machine is badly anchored.Anchor the machine firmly.
The machine is incorrectly adjusted (excessive play in the carriage guides, motor spindle or adapter out of true, etc.).Correctly adjust the machine, replace worn parts, correct the play (rollers, bearings, adapters, etc.).
The tool is warped.Withdraw any warped tool. If it is relatively new, it may be straightened by the supplier.
The bit is not correctly fixed to the motor spindle.Check that the bit is correctly aligned on the motor spindle (straight line).
There are fragments of metal in the bottom of the hole that have not been evacuated by the coolant.Remove all the metal fragments from the drilled hole. Temporarily increase the flow of water to clean out the hole and remove any debris that may still be there.
Segments broken and lost in the hole.
symptomcauseremedy

Segments broken and lost in the hole.

For a bit with brazed segments, stopping the coolant even for an instant has caused the segments to heat up and destroy the brazing.Always ensure the tool is correctly irrigated.
The bit has suffered some knocks in the hole (due to steel or loose debris, etc.) and these have broken the segments.Remove the bit from the machine and recover all the bits of steel, segments and debris before introducing a new bit. If any segment debris remains in the hole, there is a risk of very rapid damage to the new bit.
Excessive speed of rotation causes heating up of the segments.Take the tool out of service, replace or repair it if possible (consult supplier). Adjust the speed of rotation.
Start up too brutal.Always start drilling gently.
Impacts due to the equipment being dropped.Avoid dropping the bit on the ground as this can crack the segments.
Tool jammed in the hole.
symptomCauseremedy
 
Debris is blocked between the core and the bit tube (steel, pieces of material); a steel bar has been drilled "banana shaped"; it has moved during drilling and jammed the bit (wedge effect).Disconnect the bit from the machine: use a spanner to turn the bit in both directions until it is released.
Loss of side-clearance of segments.Check the side-clearance of the segments. If the play is too little replace the tool.
 
 
Advantage:
WHY CHOOSE US?
1.    More than 22 years experience in diamnd tools;
2.    Get knowledge of market demand;
3.    12 experienced professors and engineers;
4.    High efficiency production flow;
5.    Strict quality control system;
6.    Exported to more than 60 countries;
7.    Professional sales team with prompt reply;

Contact us:
Quanzhou Sunny Superhard Tools Co., Ltd.
Add: Tangxi Industrial Zone, Luojiang, Quanzhou, Fujian, China
Postcode:362010
TEL: 86 - 595 - 22003682
FAX: 86 - 595 - 22003987
 
Web: http://www.sunnytools.biz
          http://www.concretetoolsunny.com
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