HSS M42 Cobalt End Mill 8%

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end mill

1. M42 HSS 8% cobalt long

2. Various specifications to meet your needs

3. Popular product with high quality

end mill M42 HSS  8% cobalt long


Product details




8% cobalt HSS M42 end mill long


Material :








3.0 to 25; 1/8 to 1


Pakcaging & Delivery details




Inner box/carton/pallet, or in bulking or according to the requiements of the clients.




International express by DHL, UPS, FedEx




Within 3-10 days after deposit or payment received


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L/C, Paypal, Western Union, or 30% pre T/T 70% balance before shipment



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3. All products have passed internation standard

4. Big stock: over 800 tons each specification

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Q:The hole is 9.97, 0.03 margin, but also with 10H7 reamer to hinge it?
Each knife distribution margin will be not the same, you are asked to assign allowance Oh, recommended by electroplating diamond reamer, you do not know the accuracy is not high, if the demand is high, is recommended by electroplating reamer, it can be divided into coarse and fine reamer to hinge, to consult Henan stone diamond reamer.
Q:How can the reaming of stainless steel extend the life of the reamer and allow Kong Guangliang to help with various problems?
Must work card reamer, oil tapping oil, black thick oil
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:How do you choose the tolerance of reaming when reaming?
Suggest you see. The worker's Manual of cutting! The cutter head is on.
Q:How to heat the reamer with 40Cr material and how much hardness should be reached?
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
Q:What are the major brands of reamers I?
Do you want a hand reamer or a machine reamer? High speed steel or hard alloy material?Is it for NC machining of CNC?
Q:Do reamers and drills for machining centers use one hilt?
One hilt is fine, of course. For example, using ER20 is fine, and the accuracy is fine!
Q:NC machining, the speed and feed of the reamer
There is no accurate data, only experience,,Question is not very professional, do not know how much,With the material, but also with clamping rigidity, tool rigidity, tool size, margin, the requirements of the accuracy of the drawings and so onNot a unified answer, in fact, the actual situation depends on the processing of the scene to determine the speed and feed,Adjust at any timeNow let me tell you something about my operation. I do horizontal boring and millingGray iron, milling cutter, assuming 200--300, speed 100--200, the fastest 250 mm depth of 10 mm 1--2 feedDrilling, high-speed steel drill bit, 40 bit, speed 60--150 between 0.4--1 mm, as the size of the drill changes, the speed and feed will also change,End mills and keyway cutters, speed 60--80, feed 0.4--0.8Boring, boring. Assuming the diameter of 100 holes, boring bar 60 thick, length 200, speed 200--300, feed 0.26--0.63 precision boring: margin 0.8--1.2, speed 350--550., feed 0.1--0.17Reamer, cutting allowance 0.1, add oil, feed speed 15--30, 0.6--1.5 mmThe above is my experience, the premise is that you must sharpen the tool,I always feel like a clip on a knife, and I don't always have the tools to sharpen it by hand
Q:What a few general tolerances reamer level holes to machining, such as phi 10H7, the high precision hole boring
General machine reamer is only guaranteed diameter tolerances, boring can ensure the cylindricity and position tolerance. 10H7 is generally used as a positioning pin hole hole, usually has the position degree, then recommend the use of CNC machine milling cutter.
Q:When reaming with carbide reamer, there will be a spiral mark on the hole wall. What's the problem?
It depends on what material you are working on.
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
Mid East
Eastern Asia
Western Europe
South Asia
Company Certifications ISO 9001:2008

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a) Certification Name  
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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  
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No. of Production Lines
Contract Manufacturing
Product Price Range