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: Machining center with 4MM and 6MM white steel reamer, 45 steel material, spindle speed and feed speed settings how much ah!: On such a small hole with white steel, with steel spiral machining cutter Wu did not know, processing thousands of hole can not use a knife, also used a certain blind hole you don't end up blowing again twisted twisted down will be a good point, cutting knife is mainly iron row is not good, or high speed feed slow knife wear quickly........................ there are.....

Q: Would you tell me if there is an approximate range of speed required for machine reamers in reaming?: The speed is related to the material of the workpiece, the size of the reamer, the allowance for machining and the roughness requirements. General steel with high speed steel cutter cutting speed is 20 meters per minute speed N=1000*v (cutting speed) / PI D, such as the 10 reamer in 20 meters cutting speed speed of N=1000*20/ (3.14*10) = 640 rpm, feed F= feed (MM/) such as *N (speed), reaming feed is 0.2/, then F=0.2*640=128MM/. From the above formula, we can choose the most economical parameter as much as possible under the premise of meeting the quality requirements.

Q: The workpiece material is Q345D, is the whole hard alloy reamer diameter 18 6 blade laevorotatory right edge reamer, now found out the hole hinge inside there is always a circle cut, when processing the machining allowance for unilateral 0.2mm, reamer speed 120r/s, feed rate is 45mm/min, the cooling liquid is emulsion, which can master under the guidance, the argument is correct. It's better to give a machining parameter, s and F, thank you. The tool is added to several beds, beating about 1 wires.: Do you use G81 or G85 or G01 feed?

Q: CNC lathe reamer, how to hinge out 0.4 of the smoothness?: With a steel reamer, 0.4 is very difficult, preferably grinding

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: What is the higher accuracy of phi 25H8 reamer and phi 25H9 reamer?: This is not a problem of higher accuracy, but a problem of tolerance and fit.

Q: Machine is a horizontal machining center Huakai, machining hole size is 14mm through hole, the first with 13.5 bits, then the 14 hinge reamer, reamer is 120 speed 320 feed speed, casting hardness is HB170 ~ 241, made out of the hole often bell shaped, reamer blade also day after day grinding, grinding or not, sometimes for a new reamer like bell. Who can help me analyze the reasons?.: I said you are so talented! Leave 0.5 of the remaining material! More than 13 of the drill bit is taper shank drilling, 0.5 mm a specification. But our experience shows that all the following 4MM are left in excess of 0.1MM. 4MM more than 0.2MM remaining material. To help you develop the process; hit the center drill - with D8 drill THR through; - 13.5 drill reaming - using D8 milling round processing, inverted 13.8THR (through) - with D8 milling round processing, DEP (depth) 8MM as a guide. Dimensions are guaranteed to be around 13.95 with 14 reamer G81 instruction S120F100 plus coolant. Not in place, you cut me. There are reamer, you do not go grinding; kill you do not rub; 14 of the reamer should be welded machine reamers? You see, the front bevel is not a chamfer. It's a cutting edge. It's a guiding role. After grinding, it's almost useless. We can use a reamer for a long time. And did you see the deflection of the reamer on the tester? Machine reamers, yaw, no-load control in 0.02, you can easily guarantee to +0.01 to +0.015. Reamer S320, when used as a milling cutter? The reamer must not be twisted at high speed, while the iron is cut at high speed without enough time to remove it. Cause extrusion deformation; twisted holes are generally large and small. Generally speaking, you don't have any big problems with 1000/D. D is the reamer size

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: Since it is reaming, choose three blades. Black holes make sense.

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: 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 Africa Mid East Eastern Asia Western Europe South Asia
Company Certifications	ISO 9001:2008

2. Manufacturer Certificates

a) Certification Name
Range
Reference
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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
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