Made in Japan
Manufacturer: Fukuda Seiko
Model: 4RBE

Compared to ball end mills, only the corners are rounded, so the blade diameter is large and rigid for the radius, so stable cutting can be obtained for die engraving (pick feed).

Material: HSS-Co (SKH56)

Lead angle: Right twist 30°

Blade diameter tolerance: 0 to -0.03

R tolerance: ±0.025

■ Radius end mill 4-flute (blade diameter 6)

Blade diameter (φD)	Corner (R)	Blade length ( )	Overall length (L)	Shank diameter (φd)
6	0.5	16	59	6
	0.75
	1
	1.5
	2

■ Radius end mill 4-flute (blade diameter 8)

Blade diameter (φD)	Corner (R)	Blade length ( )	Overall length (L)	Shank diameter (φd)
8	0.5	20	75	8
	0.75
	1
	1.5
	2
	2.5
	3

■ Radius end mill 4-flute (blade diameter 10)

Blade diameter (φD)	Corner (R)	Blade length ( )	Overall length (L)	Shank diameter (φd)
Ten	0.5	twenty five	80	Ten
	0.75
	1
	1.5
	2
	2.5
	3

■ Radius end mill 4-flute (blade diameter 12)

Blade diameter (φD)	Corner (R)	Blade length ( )	Overall length (L)	Shank diameter (φd)
12	0.5	30	90	12
	0.75
	1
	1.5
	2
	2.5
	3
	Four
	Five

■ Radius end mill 4-flute (blade diameter 14)

Blade diameter (φD)	Corner (R)	Blade length ( )	Overall length (L)	Shank diameter (φd)
14	0.5	35	100	12
	0.75
	1
	1.5
	2
	2.5
	3
	Four
	Five

■ Radius end mill 4-flute (blade diameter 15)

Blade diameter (φD)	Corner (R)	Blade length ( )	Overall length (L)	Shank diameter (φd)
15	0.5	40	105	16
	0.75
	1
	1.5
	2
	2.5
	3
	Four
	Five

■ Radius end mill 4-flute (blade diameter 16)

Blade diameter (φD)	Corner (R)	Blade length ( )	Overall length (L)	Shank diameter (φd)
16	0.5	40	105	16
	0.75
	1
	1.5
	2
	2.5
	3
	Four
	Five
	6

■ Radius end mill 4-flute (blade diameter 20)

Blade diameter (φD)	Corner (R)	Blade length ( )	Overall length (L)	Shank diameter (φd)
20	0.5	45	130	20
	0.75
	1
	1.5
	2
	2.5
	3
	Four
	Five
	6

■ Radius end mill 4-flute (blade diameter 22)

Blade diameter (φD)	Corner (R)	Blade length ( )	Overall length (L)	Shank diameter (φd)
twenty two	0.5	45	135	20
	0.75
	1
	1.5
	2
	2.5
	3
	Four
	Five
	6

■ Radius end mill 4-flute (blade diameter 25)

Blade diameter (φD)	Corner (R)	Blade length ( )	Overall length (L)	Shank diameter (φd)
twenty five	0.5	50	150	twenty five
	0.75
	1
	1.5
	2
	2.5
	3
	Four
	Five
	6
	8

■ Radius end mill 4-flute (blade diameter 26)

Blade diameter (φD)	Corner (R)	Blade length ( )	Overall length (L)	Shank diameter (φd)
26	0.5	50	150	twenty five
	0.75
	1
	1.5
	2
	2.5
	3
	Four
	Five
	6
	8

■ Radius end mill 4-flute (blade diameter 28)

Blade diameter (φD)	Corner (R)	Blade length ( )	Overall length (L)	Shank diameter (φd)
28	0.5	55	155	twenty five
	0.75
	1
	1.5
	2
	2.5
	3
	Four
	Five
	6
	8
	Ten

■ Radius end mill 4-flute (blade diameter 30)

Blade diameter (φD)	Corner (R)	Blade length ( )	Overall length (L)	Shank diameter (φd)
30	0.5	55	160	twenty five
	0.75
	1
	1.5
	2
	2.5
	3
	Four
	Five
	6
	8
	Ten

■ Radius end mill 4-flute (blade diameter 32)

Blade diameter (φD)	Corner (R)	Blade length ( )	Overall length (L)	Shank diameter (φd)
32	1	60	160	32
	1.5
	2
	2.5
	3
	Four
	Five
	6
	8
	Ten

■ Radius end mill 4-flute (blade diameter 35)

Blade diameter (φD)	Corner (R)	Blade length ( )	Overall length (L)	Shank diameter (φd)
35	1	60	175	32
	1.5
	2
	2.5
	3
	Four
	Five
	6
	8
	Ten
	12

■ Radius end mill 4-flute (blade diameter 40)

Blade diameter (φD)	Corner (R)	Blade length ( )	Overall length (L)	Shank diameter (φd)
40	1	65	180	32
	1.5
	2
	2.5
	3
	Four
	Five
	6
	8
	Ten
	12