HSS Centre Drill

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1 Box m.t.
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10000000 Boxes per Month m.t./month

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Detailed Product Description

hss centre drill


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.

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Q:PCD reamer machining hole wall roughness is not good
Remove the machine tool reason, that can only be the tool body rigidity is not enough
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:The number of drills and reamers for diameter from 1 to 20.. The more detailed, the better
With 45# steel as standard, the speed of drill is 450/S, the feed is F250, and the reamer is 500/S
Q:How can the reaming of stainless steel extend the life of the reamer and allow Kong Guangliang to help with various problems?
Cooling and cooling are needed during processing. Coolant and lubricating fluid are needed
Q:What about cutting edge of reamer?
1, use the oil hinge, do not use cutting fluid. 2, down feed, slow down, to be uniform, rhythmic, it is best to play automatic. 3, can not be intermittent, speed slow, 4, reamer material to see if you can change the soft point, as long as the processing can move like.
Q:How to heat the reamer with 40Cr material and how much hardness should be reached?
You should use the 40Cr to do the carrier, alloy blades. Actually come up with these heat treatments to sweat! How 40CR heat treatment can do directly tools?If you do the words, and it. Hardness is based on the condition of your knife, and 32-38HRC shouldn't be a big problem
Q:Do reamers and drills for machining centers use one hilt?
Yes, but it depends on the accuracy of the machined holes.
Q:The difference between the reamer and tool?
The cutter can not be changed, change the boring tool
Q:In the lathe, with a floating reamer machining material for cast iron, diameter of 55mm hole, leaving margin 0.1mm, lathe speed is appropriate!!
Not too fast. Sooner, there will be errors
Q:Hole directly to 6mm big 2 wire with 6 reamer, after the hole is still too small, how should I do?
I do not know if you use the cooling fluid, and oil cooling, easy to cause shrinkage hole, cutting fluid cooling hole is normal, if the hole is 5.97, you can hinge again
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

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

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
Product Price Range