(!) Since support from Microsoft will end on January 14th, 2020, Windows 7 will be excluded from the recommended environment from December 15th, 2019 on this site. Vì lý do Microsoft kết thúc hỗ trợ cho Windows 7 vào ngày 14/01/2020, Windows 7 sẽ là hệ điều hành không được khuyến khích sử dụng với trang web này từ ngày 15/12/2019.

Tel: 0222-361-1555 Email: cs@misumi.com.vn 8:00 - 17:00 (Mon - Sat)

ものづくりの、明日を支える。MISUMI-VONA 生産材コマースものづくりの、明日を支える。MISUMI-VONA 生産材コマース

Webcode Seach | Series: #CODE

Keyword suggestionsTừ khóa gợi ý

Part number suggestionsGợi ý mã sản phẩm

Discontinued Products

Search by Category / Brand Tìm theo danh mục, nhãn hiệu

Search by Category Tìm theo danh mục

[Thông báo] Cập nhật địa chỉ kho tập kết hàng hóa tại khu vực miền Nam của MISUMI Việt Nam. Xem chi tiết.
[Announcement] Update on warehouse address in the Southern region of MISUIMI Vietnam. See more. 
[Cảnh Báo] Thủ Đoạn Lừa Đảo Từ Nhân Viên Giao Hàng – Yêu Cầu Trả Phí Ship. Xem chi tiết.
[Warning] Fraud Calling from Shipper - Asking to Pay Shipping Fee. See more.

How can we improve?

Comments

Name (Optional)

E-mail Address (Optional)

Tel (Optional)

While we are not able to respond directly to comments submitted in this form, the information will be reviewed for future improvement.
Customer Privacy Policy

Thank you for your cooperation.

While we are not able to respond directly to comments submitted in this form, the information will be reviewed for future improvement.
Please use the inquiry form.

Customer Privacy Policy

EIKOSHA Square HSS End Mills（work material：Aluminum）

EIKOSHA offers products Square HSS End Mills specified by work material Aluminum from Cutting Tools product category. There are a total of 3 items. A tool for drilling and cutting workpieces that can be used with a wide range of materials. EIKOSHA products are available to order through MISUMI online 24/7. Free shipping, no minimum order.

Show More Detail Show More Detail

Search by specifying the lower class categoryTìm kiếm bằng cách chỉ định danh mục lớp thấp hơn

Brand	(69) (0) ASAHI TOOLS (4) DAIICHITOOL (1) DYC (1) EIKOSHA (3) ESCO (0) FUKUDA (16) NACHI(FUJIKOSHI) (45) OSG (78) OSG KOREA CORP (12) SANKO MFG (47) TAIYO-TOOL (0) YG 1 (19)
CAD	2D 3D
Days to Ship	All Same day 4 Day(s) or Less 5 Day(s) or Less 6 Day(s) or Less 7 Day(s) or Less Others

3 itemsMặt hàng

Sort By

: 30; 45; 60

You can add up to 6 items per a category to the compare list. Compare

Ultra Long End Mill with 4 Flutes EXLE4

EIKOSHA

[Features]· It is a ultra-long 4-flute type with 45° high torsion angle.

Blade diameter (D)(φ)	Blade length (ℓ)(mm)	Shank diameter (d)(mm)	Number of flutes(sheet)	Overall Length (L)(mm)	work material	Machining Application	Coating	Blade shape type	Torsion Angle (θ)	Base Blade Y/N	Tool Material Type	Underneck length (ℓ1)(mm)	shank
20 ～ 50	100 ～ 250	20 ～ 42	4	180 ～ 350	Aluminum[○]	Plane / Side / Groove / Countersinking	Non-Coated	Square	Powerful Torsion (45°-60°)	Available	Cobalt HSS	-	-

From: 5,747,752 VND
Days to Ship: Số ngày giao hàng: 6 Day(s) or more

6 Day(s) or more

You can add up to 6 items per a category to the compare list. Compare

Corner C End Mill CEM

EIKOSHA

Square end mill (HSS) with C-surfaces on the blade corners.[Features]· An end mill with 45° C-face on the corners.· Machinability is also improved thanks to adoption of twisted blade.[Applications]· End mill for processing chamfered surfaces, etc. to reinforce corners of the processed workpiece.

Blade diameter (D)(φ)	Blade length (ℓ)(mm)	Shank diameter (d)(mm)	Number of flutes(sheet)	Overall Length (L)(mm)	work material	Machining Application	Coating	Blade shape type	Torsion Angle (θ)	Base Blade Y/N	Tool Material Type	Underneck length (ℓ1)(mm)	shank
3 ～ 16	8 ～ 32	6 ～ 16	2	45 ～ 100	Aluminum[○]	Plane / Side / Groove / Countersinking	Non-Coated	For Keyway	Standard torsion (30-40°)	Available	Cobalt HSS	-	-

From: 968,083 VND
Days to Ship: Số ngày giao hàng: 6 Day(s) or more

6 Day(s) or more

You can add up to 6 items per a category to the compare list. Compare

Ultra Long Shank End Mill with 4 Flutes EXLSE4

EIKOSHA

[Features]· 4-flute ultra-long shank.· For deep engraving.

Blade diameter (D)(φ)	Blade length (ℓ)(mm)	Shank diameter (d)(mm)	Number of flutes(sheet)	Overall Length (L)(mm)	work material	Machining Application	Coating	Blade shape type	Torsion Angle (θ)	Base Blade Y/N	Tool Material Type	Underneck length (ℓ1)(mm)	shank
20 ～ 50	30 ～ 100	20 ～ 42	4	180 ～ 300	Aluminum[○]	Plane / Side / Groove / Countersinking	Non-Coated	Square	Standard torsion (30-40°)	Available	Cobalt HSS	-	-

From: 3,631,640 VND
Days to Ship: Số ngày giao hàng: 6 Day(s) or more

6 Day(s) or more


BrandNhãn hiệu
Product SeriesDòng sản phẩm
From
Days to ShipSố ngày giao hàng
Blade diameter (D)(φ)
Blade length (ℓ)(mm)
Shank diameter (d)(mm)
Number of flutes(sheet)
Overall Length (L)(mm)
work material
Machining Application
Coating
Blade shape type
Torsion Angle (θ)
Base Blade Y/N
Tool Material Type
Underneck length (ℓ1)(mm)
shank

	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare
BrandNhãn hiệu	EIKOSHA	EIKOSHA	EIKOSHA
Product SeriesDòng sản phẩm	Ultra Long End Mill with 4 Flutes EXLE4	Corner C End Mill CEM	Ultra Long Shank End Mill with 4 Flutes EXLSE4
From	5,747,752 VND-	968,083 VND-	3,631,640 VND-
Days to ShipSố ngày giao hàng	6 Day(s) or more	6 Day(s) or more	6 Day(s) or more
Blade diameter (D)(φ)	20 ～ 50	3 ～ 16	20 ～ 50
Blade length (ℓ)(mm)	100 ～ 250	8 ～ 32	30 ～ 100
Shank diameter (d)(mm)	20 ～ 42	6 ～ 16	20 ～ 42
Number of flutes(sheet)	4	2	4
Overall Length (L)(mm)	180 ～ 350	45 ～ 100	180 ～ 300
work material	Aluminum[○]	Aluminum[○]	Aluminum[○]
Machining Application	Plane / Side / Groove / Countersinking	Plane / Side / Groove / Countersinking	Plane / Side / Groove / Countersinking
Coating	Non-Coated	Non-Coated	Non-Coated
Blade shape type	Square	For Keyway	Square
Torsion Angle (θ)	Powerful Torsion (45°-60°)	Standard torsion (30-40°)	Standard torsion (30-40°)
Base Blade Y/N	Available	Available	Available
Tool Material Type	Cobalt HSS	Cobalt HSS	Cobalt HSS
Underneck length (ℓ1)(mm)	-	-	-
shank	-	-	-

Loading...Tải…

ConfigureTạo

Specification/DimensionsĐặc điểm kỹ thuật / Kích thướcĐặc điểm kỹ thuật / Kích thước

Blade diameter (D)(φ)
- 0.45～0.95
  - 0.45
  - 0.8
  - 0.9
  - 0.95
- 1～1.9
  - 1
  - 1/2
  - 1/4
  - 1/8
  - 1.05
  - 1.1
  - 1.2
  - 1.3
  - 1.4
  - 1.5
  - 1.59
  - 1.6
  - 1.7
  - 1.8
  - 1.9
- 2～2.9
  - 2
  - 2.1
  - 2.2
  - 2.3
  - 2.38
  - 2.4
  - 2.5
  - 2.6
  - 2.7
  - 2.8
  - 2.9
- 3～3.97
  - 3
  - 3/4
  - 3/16
  - 3.1
  - 3.18
  - 3.2
  - 3.3
  - 3.4
  - 3.5
  - 3.6
  - 3.7
  - 3.8
  - 3.9
  - 3.97
- 4～4.9
  - 4
  - 4.1
  - 4.2
  - 4.3
  - 4.4
  - 4.5
  - 4.6
  - 4.7
  - 4.76
  - 4.8
  - 4.9
- 5～5.9
  - 5
  - 5/8
  - 5.1
  - 5.2
  - 5.3
  - 5.4
  - 5.5
  - 5.56
  - 5.6
  - 5.7
  - 5.8
  - 5.9
- 6～6.9
  - 6
  - 6.05
  - 6.1
  - 6.2
  - 6.3
  - 6.35
  - 6.4
  - 6.5
  - 6.6
  - 6.7
  - 6.8
  - 6.9
- 7～7.94
  - 7
  - 7/8
  - 7.1
  - 7.2
  - 7.3
  - 7.4
  - 7.5
  - 7.6
  - 7.7
  - 7.8
  - 7.9
  - 7.94
- 8～8.9
  - 8
  - 8.1
  - 8.2
  - 8.3
  - 8.4
  - 8.5
  - 8.6
  - 8.7
  - 8.8
  - 8.9
- 9～9.9
  - 9
  - 9.1
  - 9.2
  - 9.3
  - 9.4
  - 9.5
  - 9.53
  - 9.6
  - 9.7
  - 9.8
  - 9.9
- 10～10.9
  - 10
  - 10.1
  - 10.2
  - 10.3
  - 10.4
  - 10.5
  - 10.6
  - 10.7
  - 10.8
  - 10.9
- 11～11.9
  - 11
  - 11.1
  - 11.11
  - 11.2
  - 11.3
  - 11.4
  - 11.5
  - 11.6
  - 11.7
  - 11.8
  - 11.9
- 12～12.9
  - 12
  - 12.1
  - 12.2
  - 12.3
  - 12.4
  - 12.5
  - 12.6
  - 12.7
  - 12.8
  - 12.9
- 13～13.9
  - 13
  - 13.1
  - 13.2
  - 13.3
  - 13.4
  - 13.5
  - 13.6
  - 13.7
  - 13.8
  - 13.9
- 14～14.9
  - 14
  - 14.1
  - 14.2
  - 14.29
  - 14.3
  - 14.4
  - 14.5
  - 14.6
  - 14.7
  - 14.8
  - 14.9
- 15～15.9
  - 15
  - 15.1
  - 15.2
  - 15.3
  - 15.4
  - 15.5
  - 15.6
  - 15.7
  - 15.8
  - 15.88
  - 15.9
- 16～16.9
  - 16
  - 16.1
  - 16.2
  - 16.3
  - 16.4
  - 16.5
  - 16.6
  - 16.7
  - 16.8
  - 16.9
- 17～17.9
  - 17
  - 17.1
  - 17.2
  - 17.3
  - 17.4
  - 17.46
  - 17.5
  - 17.6
  - 17.7
  - 17.8
  - 17.9
- 18～18.9
  - 18
  - 18.1
  - 18.2
  - 18.3
  - 18.4
  - 18.5
  - 18.6
  - 18.7
  - 18.8
  - 18.9
- 19～19.9
  - 19
  - 19.05
  - 19.1
  - 19.2
  - 19.3
  - 19.4
  - 19.5
  - 19.6
  - 19.7
  - 19.8
  - 19.9
- 20～20.9
  - 20
  - 20.1
  - 20.2
  - 20.3
  - 20.4
  - 20.5
  - 20.6
  - 20.64
  - 20.7
  - 20.8
  - 20.9
- 21～21.9
  - 21
  - 21.1
  - 21.2
  - 21.3
  - 21.4
  - 21.5
  - 21.6
  - 21.7
  - 21.8
  - 21.9
- 22～22.9
  - 22
  - 22.1
  - 22.2
  - 22.23
  - 22.3
  - 22.4
  - 22.5
  - 22.6
  - 22.7
  - 22.8
  - 22.9
- 23～23.9
  - 23
  - 23.1
  - 23.2
  - 23.3
  - 23.4
  - 23.5
  - 23.6
  - 23.7
  - 23.8
  - 23.81
  - 23.9
- 24～24.9
  - 24
  - 24.1
  - 24.2
  - 24.3
  - 24.4
  - 24.5
  - 24.6
  - 24.7
  - 24.8
  - 24.9
- 25～25.9
  - 25
  - 25.1
  - 25.2
  - 25.3
  - 25.4
  - 25.5
  - 25.6
  - 25.7
  - 25.8
  - 25.9
- 26～26.9
  - 26
  - 26.1
  - 26.2
  - 26.3
  - 26.4
  - 26.5
  - 26.6
  - 26.7
  - 26.8
  - 26.9
- 27～27.9
  - 27
  - 27.1
  - 27.2
  - 27.3
  - 27.4
  - 27.5
  - 27.6
  - 27.7
  - 27.8
  - 27.9
- 28～28.9
  - 28
  - 28.1
  - 28.2
  - 28.3
  - 28.4
  - 28.5
  - 28.6
  - 28.7
  - 28.8
  - 28.9
- 29～29.9
  - 29
  - 29.1
  - 29.2
  - 29.3
  - 29.4
  - 29.5
  - 29.6
  - 29.7
  - 29.8
  - 29.9
- 30～30.9
  - 30
  - 30.1
  - 30.2
  - 30.3
  - 30.4
  - 30.5
  - 30.6
  - 30.7
  - 30.8
  - 30.9
- 31～31.9
  - 31
  - 31.1
  - 31.2
  - 31.3
  - 31.4
  - 31.5
  - 31.6
  - 31.7
  - 31.75
  - 31.8
  - 31.9
- 32～32.9
  - 32
  - 32.1
  - 32.2
  - 32.3
  - 32.4
  - 32.5
  - 32.6
  - 32.7
  - 32.8
  - 32.9
- 33～33.9
  - 33
  - 33.1
  - 33.2
  - 33.3
  - 33.4
  - 33.5
  - 33.6
  - 33.7
  - 33.8
  - 33.9
- 34～34.9
  - 34
  - 34.1
  - 34.2
  - 34.3
  - 34.4
  - 34.5
  - 34.6
  - 34.7
  - 34.8
  - 34.9
- 35～35.9
  - 35
  - 35.1
  - 35.2
  - 35.3
  - 35.4
  - 35.5
  - 35.6
  - 35.7
  - 35.8
  - 35.9
- 36～36.9
  - 36
  - 36.1
  - 36.2
  - 36.3
  - 36.4
  - 36.5
  - 36.6
  - 36.7
  - 36.8
  - 36.9
- 37～37.9
  - 37
  - 37.1
  - 37.2
  - 37.3
  - 37.4
  - 37.5
  - 37.6
  - 37.7
  - 37.8
  - 37.9
- 38～38.9
  - 38
  - 38.1
  - 38.2
  - 38.3
  - 38.4
  - 38.5
  - 38.6
  - 38.7
  - 38.8
  - 38.9
- 39～39.9
  - 39
  - 39.1
  - 39.2
  - 39.3
  - 39.4
  - 39.5
  - 39.6
  - 39.7
  - 39.8
  - 39.9
- 40～40.9
  - 40
  - 40.1
  - 40.2
  - 40.3
  - 40.4
  - 40.5
  - 40.6
  - 40.7
  - 40.8
  - 40.9
- 41～41.9
  - 41
  - 41.1
  - 41.2
  - 41.3
  - 41.4
  - 41.5
  - 41.6
  - 41.7
  - 41.8
  - 41.9
- 42～42.9
  - 42
  - 42.1
  - 42.2
  - 42.3
  - 42.4
  - 42.5
  - 42.6
  - 42.7
  - 42.8
  - 42.9
- 43～43.9
  - 43
  - 43.1
  - 43.2
  - 43.3
  - 43.4
  - 43.5
  - 43.6
  - 43.7
  - 43.8
  - 43.9
- 44～44.9
  - 44
  - 44.1
  - 44.2
  - 44.3
  - 44.4
  - 44.5
  - 44.6
  - 44.7
  - 44.8
  - 44.9
- 45～45.5
  - 45
  - 45.5
- 46～46.5
  - 46
  - 46.5
- 47～47.5
  - 47
  - 47.5
- 48～48.5
  - 48
  - 48.5
- 49～49.5
  - 49
  - 49.5
- 50～50.8
  - 50
  - 50.5
  - 50.8
- 51
- 52
- 53
- 54
- 55
- 56
- 57
- 58
- 59
- 60
- 61
- 62
- 63
- 64
- 65
- 66
- 67
- 68
- 69
- 70
- 71
- 72
- 73
- 74
- 75
- 76
- 77
- 78
- 79
- 80
- 85
- 90
- 95
- 100
Drawing

ClearTrống

Blade length (ℓ)(mm)
1-1/4

1.1

1.6

1.8

2

2.2

2.5

3

3.5

4

4.5

5

5.5

6

6.5

7

7.5

8

9

10

10.5

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

30

31

32

33

34

35

36

38

39

40

45

48

50

53

55

56

57

58

60

63

65

67

68

70

75

80

85

90

95

100

105

106

110

112

115

120

122

125

130

140

145

150

160

180

200

212

250

300
Drawing

ClearTrống

Shank diameter (d)(mm)
1/2

4

5

BS5

6

7

8

9

10

11

12

15

16

19

20

24

25

32

42

108
Drawing

ClearTrống

Number of flutes(sheet)
1

2

3

4

4~6

5

6

8

10

12

14

16

18
ClearTrống

Overall Length (L)(mm)
- 3-1/4
- 27
- 31～38
  - 31
  - 35
  - 38
- 40～48
  - 40
  - 42
  - 45
  - 46
  - 48
- 50～59
  - 50
  - 51
  - 52
  - 53
  - 54
  - 55
  - 56
  - 57
  - 58
  - 59
- 60～69
  - 60
  - 62
  - 63
  - 64
  - 65
  - 66
  - 67
  - 68
  - 69
- 70～79
  - 70
  - 72
  - 73
  - 74
  - 75
  - 76
  - 77
  - 78
  - 79
- 80～89
  - 80
  - 82
  - 83
  - 84
  - 85
  - 86
  - 88
  - 89
- 90～97
  - 90
  - 91
  - 92
  - 95
  - 97
- 100～108
  - 100
  - 101
  - 102
  - 104
  - 105
  - 108
- 110～119
  - 110
  - 115
  - 116
  - 119
- 120～127
  - 120
  - 121
  - 122
  - 123
  - 124
  - 125
  - 127
- 130～137
  - 130
  - 132
  - 133
  - 134
  - 135
  - 137
- 140～149
  - 140
  - 141
  - 142
  - 143
  - 144
  - 145
  - 147
  - 149
- 150～155
  - 150
  - 154
  - 155
- 160～169
  - 160
  - 162
  - 165
  - 166
  - 169
- 170～178
  - 170
  - 173
  - 175
  - 177
  - 178
- 180～189
  - 180
  - 182
  - 183
  - 184
  - 185
  - 186
  - 188
  - 189
- 190～198
  - 190
  - 191
  - 193
  - 195
  - 197
  - 198
- 200～208
  - 200
  - 202
  - 203
  - 205
  - 208
- 210～215
  - 210
  - 213
  - 214
  - 215
- 220～227
  - 220
  - 222
  - 224
  - 225
  - 227
- 230～235.5
  - 230
  - 233
  - 235
  - 235.5
- 240～245.5
  - 240
  - 245
  - 245.5
- 250～255
  - 250
  - 250.5
  - 252
  - 253
  - 255
- 260～265
  - 260
  - 265
- 270～275
  - 270
  - 275
- 280～288
  - 280
  - 283
  - 285
  - 288
- 290～295
  - 290
  - 295
- 300
- 310～315
  - 310
  - 315
- 320
- 340～345
  - 340
  - 345
- 350
- 370
- 390～395
  - 390
  - 395
- 400
- 420
Drawing

ClearTrống

work material
- general steel
- Quenched and tempered steel
- high hardness steel
- Stainless Steel
- Cast Iron
- Aluminum
- Titanium
- Copper
- Resin
- Other
- Other 2
- Other 3
- Other 4
Details

ClearTrống

Machining Application
- Plane
- Side
- Groove
- Plunging (Z feed)
- Inclined Cuts
- Countersinking
- Other
Images

ClearTrống

Coating
- For High Hardness (Silicon Group)
- TiAlN
- For General Steels (AlCrN, etc.)
- TiCN
- TiN
- Non-Coated
- AG
Details

ClearTrống

Blade shape type
- Square
- Roughing
- For Keyway
ClearTrống

Torsion Angle (θ)
- No torsion
- Weak torsion (15 to 25˚)
- Standard torsion (30-40°)
- Powerful Torsion (45°-60°)
- Other
ClearTrống

Base Blade Y/N
- Available
- None
ClearTrống

Tool Material Type
- Cobalt HSS
- Powder high-speed steel
- High-speed steel
- Alloy HSS
Details

ClearTrống

Underneck length (ℓ1)(mm)
10

12

14

17

22

23

27

28

29

37

38

40

44

45

46

48

49

50

53

54

56

58

60

62

64

65

66

70

72

75

80

88

90

95

100

112

113

115

128

144
Drawing

ClearTrống

shank
- Straight
ClearTrống

Related Categories to Square HSS End MillsDanh mục liên quan đến Square HSS End Mills

- Square End Mills (HSS)
- High Helix End Mills (HSS)

Top of the page

About MISUMIVề Misumi

About this WebsiteVề trang Web này

Useful ToolsCác công cụ hữu ích

Customer ServiceDịch vụ chăm sóc khách hàng

MISUMI Contact Monday to Saturday: 8:00 am - 5:00 pm Order cut off time is 5:00 pm Thứ 2 đến Thứ 7: 8 giờ sáng đến 5 giờ chiều Hạn chót đặt hàng là 5 giờ chiều

Tel:Số điện thoại:0222-361-1555
Fax:Số Fax:0222-361-2555
InquiryYêu cầu

MISUMI APP

Install MISUMI APP

MISUMI Vietnam Company Limited, Legal Representative: Tomohiro Watanabe,
phone: 0222-361-1555, e-mail: cs@misumi.com.vn, Enterprise Code: 0107514576,
Date of Issuance: 22 July 2016, Place of Issuance: Bac Ninh, Business Certificate No. 6573041568-KD dated 27 September 2016 issued by the People's Committee of Bac Ninh

Công ty TNHH MISUMI Việt Nam, Đại diện theo pháp luật: Tomohiro Watanabe,
Điện thoại: 0222-361-1555, e-mail: cs@misumi.com.vn, Mã số doanh nghiệp: 0107514576,
ngày cấp 22/7/2016, nơi cấp: Bắc Ninh, Giấy phép kinh doanh số: 6573041568-KD ngày cấp 27/9/2016 bởi UBND tỉnh Bắc Ninh

Search by Category / Brand Tìm theo danh mục, nhãn hiệu

Search by Category Tìm theo danh mục

How can we improve?

EIKOSHA Square HSS End Mills（work material：Aluminum）

Search by specifying the lower class categoryTìm kiếm bằng cách chỉ định danh mục lớp thấp hơn

ConfigureTạo

Specification/DimensionsĐặc điểm kỹ thuật / Kích thướcĐặc điểm kỹ thuật / Kích thước

Blade diameter (D)(φ)

Blade length (ℓ)(mm)

Shank diameter (d)(mm)

Number of flutes(sheet)

Overall Length (L)(mm)

work material

Machining Application

Coating

Blade shape type

Torsion Angle (θ)

Base Blade Y/N

Tool Material Type

Underneck length (ℓ1)(mm)

shank

Related Categories to Square HSS End MillsDanh mục liên quan đến Square HSS End Mills

About MISUMIVề Misumi

About this WebsiteVề trang Web này

Useful ToolsCác công cụ hữu ích

Customer ServiceDịch vụ chăm sóc khách hàng

MISUMI Contact Monday to Saturday: 8:00 am - 5:00 pm Order cut off time is 5:00 pm Thứ 2 đến Thứ 7: 8 giờ sáng đến 5 giờ chiều Hạn chót đặt hàng là 5 giờ chiều