Straight Shank Right Hand Spiral Flute Reamer-Changzhou Maiteng Tools Co.,Ltd.

High precision: suitable for precision hole processing, tolerance is usually at H7 level.
• Smooth chip removal: Spiral groove design effectively removes chips, reduces blockage and tool wear.
• High processing efficiency: Suitable for high-speed cutting, improves production efficiency.
• Wide applicability: Can be used for a variety of materials such as steel, cast iron, non-ferrous metals, etc.

Processed Materials	Cast Iron Nodular Cast Iron			Copper Alloy			Casting Aluminum Alloys
Cutting Speed	8~16m/min			10~25m/min			15~30 m/min
Diameter (mm)	Rotational Speed (min^-1)	Feed Rate (mm/r)	Margin (mm)	Rotational Speed (min^-1)	Feed Rate (mm/r)	Margin (mm)	Rotational Speed (min^-1)	Feed Rate (mm/r)	Margin (mm)
4	950	0.04~0.06	0.1~0.2	1600	0.04~0.06	0.1~0.2	2000	0.04~0.06	0.1~0.2
5	760	0.05~0.09	0.1~0.2	1300	0.05~0.09	0.1~0.2	1600	0.05~0.09	0.1~0.2
6	640	0.06~0.12	0.1~0.2	1050	0.06~0.12	0.1~0.2	1300	0.06~0.12	0.1~0.2
7	550	0.07~0.14	0.1~0.2	910	0.07~0.14	0.1~0.2	1150	0.07~0.14	0.1~0.2
8	480	0.08~0.16	0.1~0.2	800	0.08~0.16	0.1~0.2	1000	0.08~0.16	0.1~0.2
9	430	0.09~0.18	0.1~0.2	710	0.09~0.18	0.1~0.2	890	0.09~0.18	0.1~0.2
10	380	0.10-0.20	0.1~0.2	640	0.10~0.20	0.1~0.2	800	0.10-0.20	0.1~0.2
11	350	0.11~0.22	0.1~0.2	580	0.11~0.22	0.1~0.2	720	0.11~0.22	0.1~0.2
12	320	0.12-0.24	0.1~0.2	530	0.12~0.24	0.1~0.2	660	0.12~0.24	0.1~0.2
13	290	0.13~0.26	0.1~0.2	490	0.13~0.26	0.1~0.2	610	0.13~0.26	0.1~0.2
14	270	0.14~0.28	0.1~0.2	460	0.14~0.28	0.1~0.2	570	0.14~0.28	0.1~0.2
15	250	0.15~0.30	0.1~0.2	430	0.15~0.30	0.1~0.2	530	0.15~0.30	0.1~0.2
16	240	0.16~0.32	0.1~0.2	400	0.16~0.32	0.1~0.2	500	0.16~0.32	0.1~0.2
17	225	0.18~0.34	0.1~0.2	380	0.18~0.34	0.1~0.2	470	0.18~0.34	0.1~0.2
18	210	0.20~0.36	0.1~0.2	350	0.20~0.36	0.1~0.2	440	0.20~0.36	0.1~0.2
19	200	0.22~0.38	0.1~0.2	340	0.22~0.38	0.1~0.2	420	0.22~0.38	0.1~0.2
20	190	0.24~0.40	0.1~0.2	320	0.24~0.40	0.1~0.2	400	0.24~0.40	0.1~0.2

1. Please use a handle with high rigidity and precision.
2. Please use sufficient coolant.
3. Please adjust the parameters appropriately according to the cutting material and the rigidity of the machine.

NNJD1H7 Straight Shank Right Hand Spiral Flute Reamer features an optimized spiral flute design that ensures smooth chip evacuation, effectively reducing clogging and minimizing tool wear. The spiral structure decreases cutting resistance, leading to a more stable machining process, making it particularly well-suited for precision machining of deep and blind holes.

Manufactured with high-precision grinding technology, this reamer guarantees sharp cutting edges and precise dimensions, achieving an H7 tolerance level. Additionally, the surface is treated with specialized coatings to enhance wear and heat resistance, allowing it to maintain excellent performance even in high-speed cutting conditions, ultimately boosting productivity.

A wide range of size options is available, with diameters ranging from 4.0mm to 20.0mm, along with various cutting and overall length configurations. This flexibility enables users to choose the perfect specifications for their specific machining needs, ensuring compatibility with different equipment and processing requirements.

The NNJD1H7 is designed for efficient and precise machining of a variety of materials, including steel, cast iron, and non-ferrous metals. It excels in processing ductile iron, aluminum alloys, and copper alloys, delivering stable and accurate results for both high-volume production and precision single-piece machining.

Changzhou Maiteng Tools Co.,Ltd.is located in the economically developed Yangtze River Delta region.The factory is located in XixiashuHigh-tech Development Zone,a well-known tool town in China.It is adjacent to S239 and Jiangyi Expressway in the east,25kilometers away from Changzhou North Station of the high-speed railway, and G42 Shanghai-Nanjing in the south.High-speed,8 kilometers away from Changzhou Benniu International Airport,the transportation is very convenient.
Magotantools take the ISO9001 quality system as the standard,under the guidanceof the business philosophy of"zero defect in products"and"zero distance in service",based on the spirit of"integrity","unity"and"exploita- tion",and follow a fair and just company style for management.Product production adopts five-axisand six-axis CNC grinding and machining centers from Germany,Switzerland,Japan,etc.,and is equipped with high-preci- sion testing equipment such as Germany,Japan,and China,so as to meet the needs of production with high quality and quantity.
The company's team consists of 2 professor-level senior engineers in China,and has more than ten experienced tool technology and R&D personnel.It has formed a long-term cooperation model with East China University of Science and Technology,and continuously develops various high-performance CNC tools,and has won various national awards.More than 10 patents,the company's products are mainly used in the defense industry, aerospace industry,automotive industry,electronic products and molds and other fields.
The company's various products are recognized and favored by well-known domestic companies.With infinite technology,infinite creation,and pursuit of excellence,Magotan tools will write future prosperity and dreams with more extraordinary confidence and high-quality quality.

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