Fujian, China
Business Type:
Number of Employees:
Year of Establishment:
Management System Certification:
ISO 9001, ISO 14000
OEM/ODM Availability:
OEM/ODM Service
Sample Available
Overseas Agent / Branch

Retipping Magnet, Magnetic Drill Bit Holder, Magnet for Core Bit Segment manufacturer / supplier in China, offering Metal Retipping Magnetic Drill Bit Holder for Core Drill Bit Segment, Manufacturers Marble Floor Diamond Polishing Grinding Wheel Tool Cassani Abrasive, Huazuan Tool Granite Cutting Diamond Saw Blade and so on.

Diamond Member Since 2007
Audited Supplier
Supplier Homepage Products Brazing magnet Metal Retipping Magnetic Drill Bit Holder for Core Drill Bit Segment

Metal Retipping Magnetic Drill Bit Holder for Core Drill Bit Segment

Purchase Qty. / Reference FOB Price
10-99 Pieces US $8
100-499 Pieces US $7
500+ Pieces US $6
Port: Xiamen, China
Production Capacity: 50000PCS/Month
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Customized: Customized
Standard: ISO9001:2000, SGS
Length: 120/160/370/450mm
Type: Core Drill Bit
Material: Diamond
Usage: Masonry Drilling

You Might Also Like


Basic Info.

Model NO.
Braze for Welding Segment on Core Barrels
Product Name
Magnet Holder
Raw Material
Magnet,Steel etc
Retip Welding Magnet
Total Length
72.5mm Overall Length
4 Position
4 Side Clearance Available
Welding Technology
High Frequency Welding, Laser Welding
Logo & Main Operating Info.
Transport Package
Carton. etc
Fujian. China
HS Code
Product Description

Magnet Holder:
Metal Retipping Magnetic Drill Bit Holder for Core Drill Bit Segment


This tool is used for brazing the segments onto the barrels.
Because the segments are usually 4mm thick and a barrel might be 2mm thick, this tool gives you the offset required when brazing your segments onto the barrel.Application: For segment retipping
Metal Retipping Magnetic Drill Bit Holder for Core Drill Bit Segment



The retipping magnet are made of strong N35EH neodymium magnet with strong magnitizm but also high resistance for heat.In the meantime,the retipping magnet are perfect for position the drilling segment in percise side clearance.Also the inner side clearance can be adjust when you put the magnet in it's a,b,c,d position

4 side clearance available 
Strong magnet for resisting high temperature
72.5mm overal length
With N35EH neodymium magnet

Metal Retipping Magnetic Drill Bit Holder for Core Drill Bit Segment

Normally when brazing the segment,the rule is:
Inner side clearance=(segment width-steel core width)x0.4
Outer side clearance=(segment width-steel core width)x0.4
Following is the reference for the segment size and steel core width for different diameter

Diameter(mm)Segment No.Segmen Size(mm)Segment ThicknessSteel Core Thickness

1.Isn´it difficult to braze? What do I need to start retipping myself?
If you have no experience on how to braze you will learn quick - we will provide you with all the information you may need and what equipment to choose. Practice on a bit or two and you will soon get the grip.

2.What do I need to start?
When you order your retipping equipment from us, to decide what knife and matrix to choose, inform us what segment length you use for your retipping. 24 mm length is the most common in Europe. (1" for USA.)
For the brazing we recommend acetylen/ oxygen gas and a torch head with a concentrated flame. (More information comes with your first magnet shipment.) This you buy at you local supplier.To start brazing with magnets a good quantity may be 12 pcs of magnet. Then you normally can braze core bits up to Ø 150 mm (6") in one set. Silver for the brazing and flux specially suited for these kind of jobs you can order from us.

3.How many segments shall I put on?
Along with the equipment comes a chart showing recommended number of segments for each diameter. You are free to change according to your wishes. If you are drilling in very hard materials - or if you want to drill faster - or if you have a weak machine - you put on less segments.


4.What segment width shall I choose?
First depending on the steel thickness - you need a clearance on both sides of at least 0.5 mm (.02") on the smallest bits. On the outside of the bit you may have a little more clearance than on the inside. The more power on the machine or the more abrasive material the bigger clearance is to prefer.


5.What is the life on the magnets?
The magnets can be used several thousand times.


6.Can I also buy only the steel barrels and that way manufacture my own new bits?
Yes, of course you can manufacture new bits on your own by purchasing only the barrels.


Send your message to this supplier

avatar Mr. Jimmy

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now