UNION TOOL Long Neck Radius End Mills (Carbide)（Coating：For High Hardness (Silicon Group)）

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HRRS, HM Coated 4-Flute Radius

UNION TOOL

[Features]
· Higher speed and higher precision machining enabled by shortening the total length and reducing the protruding part of the tool
· The optimized corner radius size enables processing with larger feed than conventional
· Seamless Corner Radius Shape
· High hardness materials up to 65 HRC can also be machined

Starting from^∗ ：	76.38 €
Min. Shipping Days ：	6 Days

*Unit price with basic configuration

Promotional pricing

HLRS 4-Flute Long-Neck Radius

UNION TOOL

[Features]
· Long neck radius shape that exhibits power in high-performance and high-quality machining
· Rigidity-oriented blade shape provides long life even when machining high hardness materials
· Capable of stable machining for both dry and wet type
· New HARDMAX coating adopted to improve oxidation resistance.

Starting from^∗ ：	55.58 €
	Special price
Min. Shipping Days ：	Same day

*Unit price with basic configuration

Promotional pricing

HLRS2000 HM Coated 2 Flute Long-Neck Radius

UNION TOOL

[Features]
· Long neck radius shape that exhibits power in high-performance and high-quality machining
· Capable of cutting everything from raw materials to high-hardness materials
· Capable of stable, long-life machining for both dry and wet type

Volume Discount

Starting from^∗ ：	43.45 €
	Special price
Min. Shipping Days ：	Same day

*Unit price with basic configuration

Promotional pricing

HLRS2000E High Accuracy Type, High R Precision Long-Neck Radius

UNION TOOL

Starting from^∗ ：	60.34 €
	Special price
Min. Shipping Days ：	Same day

*Unit price with basic configuration

CRS40HSP High Efficiency 3-Flute Long Neck Radius 40° Twist

UNION TOOL

[Features]
· High Efficiency 3-Flute Long Neck Radius (Short Blade)
· 40° Torsion
· Supports materials from SUS to pre-hardened and hardened steel (60 HRC)

Starting from^∗ ：	70.40 €
Min. Shipping Days ：	9 Days

*Unit price with basic configuration

CRS20HSP High Efficiency 4-Flute Long Neck Radius 20° Twist

UNION TOOL

[Features]
· High-rigidity 4-flute radius 8 (for high-hardness materials). 20° torsion.

Starting from^∗ ：	48.20 €
Min. Shipping Days ：	9 Days

*Unit price with basic configuration

HRRS 6-Flute Long Neck Radius

UNION TOOL

[Features]
· A long neck radius end mill; ideal for machining high hardness materials.
· 6-flute type; designed with an emphasis on rigidity.

Starting from^∗ ：	116.34 €
Min. Shipping Days ：	6 Days

*Unit price with basic configuration


Brand
Product Series
Starting from^∗
Min. Shipping Days ：
Blade diameter (D)(φ)
R Size(mm)
work material
Blade length (ℓ)(mm)
Number of flutes(sheet)
Type
Overall Length (L)(mm)
Shank diameter (d)(mm)
Underneck length (ℓ1)(mm)
Machining Application
Coating
Torsion Angle (θ)
R Precision(μm)

		Promotional pricing	Promotional pricing	Promotional pricing
Brand	UNION TOOL	UNION TOOL	UNION TOOL	UNION TOOL	UNION TOOL	UNION TOOL	UNION TOOL
Product Series	HRRS, HM Coated 4-Flute Radius	HLRS 4-Flute Long-Neck Radius	HLRS2000 HM Coated 2 Flute Long-Neck Radius	HLRS2000E High Accuracy Type, High R Precision Long-Neck Radius	CRS40HSP High Efficiency 3-Flute Long Neck Radius 40° Twist	CRS20HSP High Efficiency 4-Flute Long Neck Radius 20° Twist	HRRS 6-Flute Long Neck Radius
Starting from^∗	76.38 € *Unit price with basic configuration	55.58 € Special price *Unit price with basic configuration Promotional pricing	43.45 € Special price *Unit price with basic configuration Promotional pricing Volume Discount	60.34 € Special price *Unit price with basic configuration Promotional pricing	70.40 € *Unit price with basic configuration	48.20 € *Unit price with basic configuration	116.34 € *Unit price with basic configuration
Min. Shipping Days ：	6 Days	Same day	Same day	Same day	9 Days	9 Days	6 Days
Blade diameter (D)(φ)	2 ～ 12	0.8 ～ 6	0.4 ～ 6	0.2 ～ 6	3 ～ 12	2　～ 12	-
R Size(mm)	0.3 ～ 4	0.05 ～ 1	0.05 ～ 1	0.05 ～ 1	0.1 ～ 0.5	0.2 ～ 1.2	-
work material	Quenched and tempered steel[◎] / High Hardness Steel: to HRC55[◎] / High Hardness Steel: to HRC60[◎] / High Hardness Steel: to HRC65[○] / Cast Iron[○]	General Steel[○] / Quenched and tempered steel[◎] / High Hardness Steel: to HRC55[◎] / High Hardness Steel: to HRC60[◎] / High Hardness Steel: to HRC65[○] / Cast Iron[○] / Copper[○]	General Steel[○] / Quenched and tempered steel[◎] / High Hardness Steel: to HRC55[◎] / High Hardness Steel: to HRC60[◎] / High Hardness Steel: to HRC65[○] / Stainless Steel[○] / Cast Iron[○] / Titanium[○] / Copper[◎]	General Steel[○] / Quenched and tempered steel[◎] / High Hardness Steel: to HRC55[◎] / High Hardness Steel: to HRC60[◎] / High Hardness Steel: to HRC65[○] / Stainless Steel[○] / Cast Iron[○] / Copper[◎]	General Steel[◎] / Quenched and tempered steel[◎] / High Hardness Steel: to HRC55[○] / High Hardness Steel: to HRC60[○] / Stainless Steel[◎] / Cast Iron[◎] / Graphite[○] / Resin[○]	General Steel[○] / Quenched and tempered steel[○] / High Hardness Steel: to HRC55[◎] / High Hardness Steel: to HRC60[◎] / Cast Iron[◎]	General Steel[○] / Quenched and tempered steel[◎] / High Hardness Steel: to HRC55[◎] / High Hardness Steel: to HRC60[○] / Cast Iron[○] / Titanium[○] / Copper[○]
Blade length (ℓ)(mm)	2 ～ 12	0.48 ～ 4.8	0.4 ～ 6	0.2 ～ 6	4 ～ 15	2.5 ～ 15	6 ～ 12
Number of flutes(sheet)	4	4	2	2	3	4	6
Type	Long-Neck Radius	Long-Neck Radius	Long-Neck Radius	Long-Neck Radius	Long-Neck Radius	Long-Neck Radius	Long-Neck Radius
Overall Length (L)(mm)	70 ～ 120	50 ～ 120	50 ～ 120	50 ～ 100	38 ～ 120	50 ～ 75	60 ～ 100
Shank diameter (d)(mm)	3 ～ 12	4 ～ 6	4 ～ 6	4 ～ 6	3 ～ 12	6 ～ 12	6 ～ 12
Underneck length (ℓ1)(mm)	6 ～ 36	2 ～ 48	1 ～ 60	0.5 ～ 30	7 ～ 54	5 ～ 30	-
Machining Application	Plane / Side / Curved surface	Plane / Side / Curved surface	Plane / Side / Curved surface / Groove / Plunging (Z feed)	Plane / Side / Curved surface / Groove / Plunging (Z feed)	Plane / Side / Groove	Plane / Side / Groove	-
Coating	For High Hardness (Silicon Group)	For High Hardness (Silicon Group)	For High Hardness (Silicon Group)	For High Hardness (Silicon Group)	For High Hardness (Silicon Group)	For High Hardness (Silicon Group)	For High Hardness (Silicon Group)
Torsion Angle (θ)	High Helix (45˚ to 60˚)	Standard Helix (30˚ to 40˚)	Standard Helix (30˚ to 40˚)	Standard Helix (30˚ to 40˚)	Standard Helix (30˚ to 40˚)	Weak torsion (15˚ to 25˚)	High Helix (45˚ to 60˚)
R Precision(μm)	-	-	-	-	-	-	±10 ～ ±15

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Blade diameter (D)(φ)
0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

1.2

1.5

1.8

2

2　

2.5

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3　

3.5

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4　

4.5

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25
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R Size(mm)
R0

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0.05

0.1

0.15

0.2

0.25

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0.6

0.8

1

R1

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1.5

R1.5

2

R2

2.5

R2.5

3

R3

4

R4

5

R5

R6
Drawing

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work material
- General Steel
- Quenched and tempered steel
- High Hardness Steel: to HRC55
- High Hardness Steel: to HRC60
- High Hardness Steel: to HRC65
- Stainless Steel
- Cast Iron
- Aluminum
- Titanium
- Copper
- Graphite
- Resin
Details

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Blade length (ℓ)(mm)
0.08

0.13

0.15

0.16

0.2

0.24

0.25

0.3

0.32

0.4

0.48

0.5

0.55

0.56

0.6

0.64

0.65

0.7

0.72

0.8

0.9

0.96

1

1.2

1.44

1.5

1.6

1.8

2

2.2

2.3

2.4

2.5

3

3　

3.2

3.7

4

4　

4.5

4.8

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5　

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7.5

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30

48

64

80

100
Drawing

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Number of flutes(sheet)
2

3

4

5

6
Drawing

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Type
- Radius
- Long-Neck Radius
- Tapered neck radius
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Overall Length (L)(mm)
38

40

45

48

49

50

51

52

53

55

60

64

65

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100

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220
Drawing

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Shank diameter (d)(mm)
3

4

6

8

10

12

16

20

25
Drawing

Clear

Underneck length (ℓ1)(mm)
0.20

0.5

1

1.5

1.60

2

2.5

3

4

4.5

5

6

7

7.5

8

9

10

11

12

12.35

14

14.35

15

16

16.65

18

20

22

24

25

26

28

30

32

32.1

32.6

33.6

34.6

35

35.6

36

39

40

41.2

42

42.2

43.2

44.2

45

45.2

46.5

48

50

54

55

56

60

60.3

60.8

61.3

62.3

63.3

64

64.3

70

72

80

80.4

81.4

82.4

84

85

90

92.9

100

102

105

108

110

120

120.6

121.6

122.6

125

140

160

160.8
Drawing

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