HSS Centre Drill

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 1 Box m.t.

Supply Capability:: 10000000 Boxes per Month m.t./month

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Detailed Product Description

hss centre drill

1.Material:HSS

2.Surface treatment: bright finish

3.Size: 1.0-5.0,3/16-7/16

Center drill.Easy cutting with high speed and excellent offtake of chips.

Suitable for products with straight flute oblique flute and sprial flute etc.

Q: What a few general tolerances reamer level holes to machining, such as phi 10H7, the high precision hole boring: 1. mechanical processing, general IT7 and IT8 reaming can be used as the end of the process.2. the boring can eliminate the machining deviation of the front process to a certain extent.The 3. reamer is a sizing tool, and the final bore diameter is mainly determined by the cutter.4. cutter diameter is adjustable, adjustable aperture is by the skills of staff to ensure the.5. reamer is a multi edge cutter, it has higher machining stability, higher work efficiency, easier to obtain good surface effect of workpiece.6. do not take measures, larger hole boring cutter to shock.7. boring is not suitable for the processing of smaller diameter holes.

Q: Processing materials for aluminum parts, unilateral processing allowance of 0.7 mm, four blade is indeed higher machining accuracy, but the row cutting than the three blade almost: When machining holes, the machining allowance is large, and the final accuracy is not requiredSelect three edge milling reamerThree blade positioning accuracyGood chip handling capacity

Q: What is CNC reamer?: Generally refers to the single indexable blade reamer (currently only international companies only), such as Sweden and Germany is MAPAL indexable single edge reamer, cutting smoothly without vibration, high machining accuracy, reaming allowance, high cutting speed, shape and position error is small, long tool life;But some people put the reamer in the NC machine tool called NC reamer, the scope is big, a reamer, common straight shank machine machine reamers with adjustable pressure, expansion reamer, reamer taper and taper shank reamer etc..

Q: With a machining center, the diameter of the hole is 28, and the cutting amount of the reamer when reaming: Such a big hole, why not boring.

Q: What causes shrinkage hole after diamond reamer machining?: The sharpness of the reamer decreases and no effective cutting is formed. It results in the formation of friction, extrusion and reaming, and shrinkage is the expression of elastic deformation recovery

Q: Hole diameter requirements 30, 0-4 wire, what specifications of the reamer?: This is to use the corresponding D30 (H7) reamer, of course, D30 (H8) can also choose. These will take longer.

Q: The problem of poor chip removal, special reamer scraps can not be found out. What's the main problem?: Reaming is not large, resulting in little chip; most of the reamer is a straight edge, even with a spiral angle reamer is not in order to chip (although there is a certain chip removal effect). It's usually artificial chip removal.

Q: What is the machining accuracy of the reamer?: Generally can reach H8, Ra3.2. You can also reach H7, Ra1.6, and a little bit of effort".

Q: Why reaming with reamer is the workpiece of ductile iron 500, the aperture will be smaller, and the aperture requirement is 9. After reaming, the reamer will not enter the hole. What is the reason why the hole is too small for the reamer to go in?: Possible causes1., cold shrinkage 2. plastic deformation of material, 3. tool edge wear, processing surface roughness is too bad

Q: I need to use this knife to do the work. The material is QT450-10. When the tool is made, the first step is to process and reheat the required hardness without welding the blade, then weld the blade and reprocess.: My suggestion is high frequency quenching or mesh belt furnace quenchingI don't know the size of your work here. If it's over 50, then you will not be able to do it later

We are a young team full of creation & knowledge. We are always advocating the business faith of "honest, practical, innovative, senior". We adhere to the enterprise development goals of high quality, best service, timely innovation, and win-win cooperation all the time. we believe in the purchasing policy of "try our best to bring your cost down". If you plan to purchase goods to reduce your cost, please let us have a chance to quote at your needs. We are capable of providing you with a profitable proposal with assurance.Hope we can build long-term and good business relationship.

1. Manufacturer Overview

Location	Guangdong,China
Year Established	2012
Annual Output Value
Main Markets	North America South America Eastern Europe Southeast Asia Africa Mid East Eastern Asia Western Europe South Asia
Company Certifications	ISO 9001:2008

2. Manufacturer Certificates

a) Certification Name
Range
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3. Manufacturer Capability

a) Trade Capacity
Nearest Port	shenzhen
Export Percentage	91% - 100%
No.of Employees in Trade Department	6-10 People
Language Spoken:	English, Chinese
b) Factory Information
Factory Size:
No. of Production Lines
Contract Manufacturing
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