2 Flute Flat Head End Mills

Processed Materials	Cast Iron Nodular Cast Iron		Carbon Steel, Alloy Steel ~750N/mm²		Carbon Steel, Alloy Steel ~30HRC		Pre-Hardened Steel, Quenched and Tempered Steel ~40HRC		Stainless Steel		Pre-Hardened Steel, Quenched and Tempered Steel ~50HRC
Diameter (mm)	Rotational Speed (min-1)	Feed Speed (mm/min)	Rotational Speed (min-1)	Feed Speed (mm/min)	Rotational Speed (min-1)	Feed Speed (mm/min)	Rotational Speed (min-1)	Feed Speed (mm/min)	Rotational Speed (min-1)	Feed Speed (mm/min)	Rotational Speed (min-1)	Feed Speed (mm/min)
1	20000	215	20000	215	20000	175	20000	175	20000	65	20000	130
2	15000	345	15000	345	15000	310	15000	305	11150	90	13000	195
3	14000	590	14000	590	13000	546	10600	455	7500	130	8500	360
4	10800	600	10800	605	10000	560	8000	460	5500	145	6500	365
5	8200	630	8200	630	7600	585	6400	480	4500	145	5000	380
6	7000	650	7000	650	6400	600	5300	500	3700	150	4200	390
8	5200	645	5200	645	4800	590	4000	495	2800	150	3200	400
10	4200	630	4200	630	3800	585	3200	480	2200	150	2500	380
12	3500	630	3500	630	3200	585	2650	480	1850	150	2100	380
14	3000	590	3000	590	2700	545	2300	455	1600	145	1800	360
16	2600	590	2600	590	2400	545	2000	455	1400	130	1600	360
18	2300	580	2300	580	2100	530	1800	450	1250	130	1400	350
20	2050	580	2050	580	1900	530	1600	450	1100	130	1250	350
Maximum Cutting Depth
								Tool Diameter	Cutting Depth ap
								∅1<D<∅3	0.15D
								∅3<D	0.3D

1. The above table shows the standard values for side milling machining. When cutting grooves with the tool, the speed should be 50%~70% of the above table, and the feed rate should be 40%~60% as the standard value.
2. Please use high-precision machine tools and tool holders.
3. Please use air cooling or cutting fluid that is less likely to produce smoke.
4. It is recommended to use sequential milling for side milling.
When the rigidity of the machine tool and workpiece installation is poor, vibration and abnormal sound may occur. In this case, the speed and feed rate in the table above should be reduced year-on-year.
6. Minimize the tool overhang length as much as possible without interference.

2 Flute Flat Head End Mills compared with 4 Flute milling cutters, have more chip evacuation space, suitable for processing sticky materials or occasions where better chip evacuation is required.
The flat head design, with a flat bottom, is suitable for processing flat surfaces or right-angle steps.
The NNC-2T 2 flute flat head end mills has a wide range of diameters, from 1 mm to 20 mm, and edge lengths ranging from 3 mm to 45 mm, which can be flexibly combined to meet various depth and precision requirements. These general specifications make it suitable for both small-scale precision machining and large parts that require efficient material removal. Users can choose the most suitable total length and edge length combination based on their specific equipment and process needs.
The tool design has a 35° helix angle and a double-edge flat end geometry to ensure smooth chip evacuation while enhancing rigidity and cutting stability. The specially designed flat end face provides excellent surface finish when face milling and provides strong cutting edge strength when grooving and side milling. The carefully arranged double-edge configuration helps minimize vibration for a more stable machining process.
This series uses the latest chromium-aluminum composite coating and undergoes a precision grinding process. The latest chromium-aluminum composite coating has excellent heat and wear resistance, which can extend tool life while ensuring consistent cutting performance. Advanced surface treatment can also significantly reduce friction and effectively prevent built-up edge during high-speed machining.