Products - (25001 Products)
Brand: Widia / Part #: 5537952
Item #: 97326243
Brand: Widia
Model #: 5537952Product Specifications
Maximum Drill Depth
4.9260 in
Drill Depth by Diameter Ratio
4xD
Maximum Depth of Cut (mm)
125.12
Shank Type
Weldon Flat
Shank Diameter (mm)
32.0000
Shank Diameter (Decimal Inch)
1.2598
Cutting Direction
Right Hand
Drill Body Length to Flange (mm)
157.00
Toolholder Style
TCF
Nose Diameter (Mm) ( - 2 Decimals)
31.00
Overall Length (mm)
218.1200
Overall Length
218.12
Through Coolant
Yes
Series
Top Cut 4
Flute Length (mm)
153.00
Shank Length (mm)
60.000
Gage Length (mm)
158.12
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Number of Shank Flats
1
Flute Type
Variable Index
Maximum Cutting Diameter (mm)
31.00
Projection (mm)
158.120
Number Of Flutes
2
Coolant Through
Yes
Brand: Widia / Part #: 5537953
Item #: 97246870
Brand: Widia
Model #: 5537953Product Specifications
Maximum Drill Depth
5.0850 in
Drill Depth by Diameter Ratio
4xD
Maximum Depth of Cut (mm)
129.15
Shank Type
Weldon Flat
Shank Diameter (mm)
32.0000
Shank Diameter (Decimal Inch)
1.2598
Cutting Direction
Right Hand
Drill Body Length to Flange (mm)
162.00
Toolholder Style
TCF
Nose Diameter (Mm) ( - 2 Decimals)
32.00
Overall Length (mm)
223.1500
Overall Length
223.15
Through Coolant
Yes
Series
Top Cut 4
Flute Length (mm)
158.00
Shank Length (mm)
60.000
Gage Length (mm)
163.15
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Number of Shank Flats
1
Flute Type
Variable Index
Maximum Cutting Diameter (mm)
32.00
Projection (mm)
163.150
Number Of Flutes
2
Coolant Through
Yes
Brand: Widia / Part #: 5537954
Item #: 97246862
Brand: Widia
Model #: 5537954Product Specifications
Maximum Drill Depth
5.2430 in
Drill Depth by Diameter Ratio
4xD
Maximum Depth of Cut (mm)
133.18
Shank Type
Weldon Flat
Shank Diameter (mm)
40.0000
Shank Diameter (Decimal Inch)
1.5748
Cutting Direction
Right Hand
Drill Body Length to Flange (mm)
164.00
Toolholder Style
TCF
Nose Diameter (Mm) ( - 2 Decimals)
33.00
Overall Length (mm)
235.1800
Overall Length
235.18
Through Coolant
Yes
Series
Top Cut 4
Flute Length (mm)
159.20
Shank Length (mm)
70.000
Gage Length (mm)
165.18
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Number of Shank Flats
1
Flute Type
Variable Index
Maximum Cutting Diameter (mm)
33.00
Projection (mm)
165.180
Number Of Flutes
2
Coolant Through
Yes
Brand: Widia / Part #: 5537955
Item #: 97246896
Brand: Widia
Model #: 5537955Product Specifications
Maximum Drill Depth
5.4020 in
Drill Depth by Diameter Ratio
4xD
Maximum Depth of Cut (mm)
137.21
Shank Type
Weldon Flat
Shank Diameter (mm)
40.0000
Shank Diameter (Decimal Inch)
1.5748
Cutting Direction
Right Hand
Drill Body Length to Flange (mm)
173.00
Toolholder Style
TCF
Nose Diameter (Mm) ( - 2 Decimals)
34.00
Overall Length (mm)
244.2100
Overall Length
244.21
Through Coolant
Yes
Series
Top Cut 4
Flute Length (mm)
167.80
Shank Length (mm)
70.000
Gage Length (mm)
174.21
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Number of Shank Flats
1
Flute Type
Variable Index
Maximum Cutting Diameter (mm)
34.00
Projection (mm)
174.210
Number Of Flutes
2
Coolant Through
Yes
Brand: Widia / Part #: 5537956
Item #: 97246888
Brand: Widia
Model #: 5537956Product Specifications
Maximum Drill Depth
5.5610 in
Drill Depth by Diameter Ratio
4xD
Maximum Depth of Cut (mm)
141.24
Shank Type
Weldon Flat
Shank Diameter (mm)
40.0000
Shank Diameter (Decimal Inch)
1.5748
Cutting Direction
Right Hand
Drill Body Length to Flange (mm)
178.00
Toolholder Style
TCF
Nose Diameter (Mm) ( - 2 Decimals)
35.00
Overall Length (mm)
249.2400
Overall Length
249.24
Through Coolant
Yes
Series
Top Cut 4
Flute Length (mm)
172.70
Shank Length (mm)
70.000
Gage Length (mm)
179.24
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Number of Shank Flats
1
Flute Type
Variable Index
Maximum Cutting Diameter (mm)
35.00
Projection (mm)
179.240
Number Of Flutes
2
Coolant Through
Yes
Brand: Widia / Part #: 5537957
Item #: 97326276
Brand: Widia
Model #: 5537957Product Specifications
Maximum Drill Depth
5.7190 in
Drill Depth by Diameter Ratio
4xD
Maximum Depth of Cut (mm)
145.27
Shank Type
Weldon Flat
Shank Diameter (mm)
40.0000
Shank Diameter (Decimal Inch)
1.5748
Cutting Direction
Right Hand
Drill Body Length to Flange (mm)
183.00
Toolholder Style
TCF
Nose Diameter (Mm) ( - 2 Decimals)
36.00
Overall Length (mm)
254.2700
Overall Length
254.27
Through Coolant
Yes
Series
Top Cut 4
Flute Length (mm)
177.70
Shank Length (mm)
70.000
Gage Length (mm)
184.27
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Number of Shank Flats
1
Flute Type
Variable Index
Maximum Cutting Diameter (mm)
36.00
Projection (mm)
184.270
Number Of Flutes
2
Coolant Through
Yes
Brand: Widia / Part #: 5537958
Item #: 97326268
Brand: Widia
Model #: 5537958Product Specifications
Maximum Drill Depth
5.9480 in
Drill Depth by Diameter Ratio
5xD
Maximum Depth of Cut (mm)
151.09
Shank Type
Weldon Flat
Shank Diameter (mm)
32.0000
Shank Diameter (Decimal Inch)
1.2598
Cutting Direction
Right Hand
Drill Body Length to Flange (mm)
182.00
Toolholder Style
TCF
Nose Diameter (Mm) ( - 2 Decimals)
30.00
Overall Length (mm)
243.0900
Overall Length
243.09
Through Coolant
Yes
Series
Top Cut 4
Flute Length (mm)
178.10
Shank Length (mm)
60.000
Gage Length (mm)
183.09
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Number of Shank Flats
1
Flute Type
Variable Index
Maximum Cutting Diameter (mm)
30.00
Projection (mm)
183.090
Number Of Flutes
2
Coolant Through
Yes
Brand: Widia / Part #: 5537959
Item #: 97326284
Brand: Widia
Model #: 5537959Product Specifications
Maximum Drill Depth
6.1470 in
Drill Depth by Diameter Ratio
5xD
Maximum Depth of Cut (mm)
156.12
Shank Type
Weldon Flat
Shank Diameter (mm)
32.0000
Shank Diameter (Decimal Inch)
1.2598
Cutting Direction
Right Hand
Drill Body Length to Flange (mm)
188.00
Toolholder Style
TCF
Nose Diameter (Mm) ( - 2 Decimals)
31.00
Overall Length (mm)
249.1200
Overall Length
249.12
Through Coolant
Yes
Series
Top Cut 4
Flute Length (mm)
184.00
Shank Length (mm)
60.000
Gage Length (mm)
189.12
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Number of Shank Flats
1
Flute Type
Variable Index
Maximum Cutting Diameter (mm)
31.00
Projection (mm)
189.120
Number Of Flutes
2
Coolant Through
Yes
Brand: Widia / Part #: 5537960
Item #: 12623948
Brand: Widia
Model #: 5537960Product Specifications
Maximum Drill Depth
6.3450 in
Drill Depth by Diameter Ratio
5xD
Maximum Depth of Cut (mm)
161.15
Shank Type
Weldon Flat
Shank Diameter (mm)
32.0000
Shank Diameter (Decimal Inch)
1.2598
Cutting Direction
Right Hand
Drill Body Length to Flange (mm)
194.00
Toolholder Style
TCF
Nose Diameter (Mm) ( - 2 Decimals)
32.00
Overall Length (mm)
255.1500
Overall Length
255.15
Through Coolant
Yes
Series
Top Cut 4
Flute Length (mm)
190.00
Shank Length (mm)
60.000
Gage Length (mm)
195.15
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Number of Shank Flats
1
Flute Type
Variable Index
Maximum Cutting Diameter (mm)
32.00
Projection (mm)
195.150
Number Of Flutes
2
Coolant Through
Yes
Brand: Widia / Part #: 5537961
Item #: 97245393
Brand: Widia
Model #: 5537961Product Specifications
Maximum Drill Depth
6.5430 in
Drill Depth by Diameter Ratio
5xD
Maximum Depth of Cut (mm)
166.18
Shank Type
Weldon Flat
Shank Diameter (mm)
40.0000
Shank Diameter (Decimal Inch)
1.5748
Cutting Direction
Right Hand
Drill Body Length to Flange (mm)
201.00
Toolholder Style
TCF
Nose Diameter (Mm) ( - 2 Decimals)
33.00
Overall Length (mm)
272.1800
Overall Length
272.18
Through Coolant
Yes
Series
Top Cut 4
Flute Length (mm)
195.90
Shank Length (mm)
70.000
Gage Length (mm)
202.18
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Number of Shank Flats
1
Flute Type
Variable Index
Maximum Cutting Diameter (mm)
33.00
Projection (mm)
202.180
Number Of Flutes
2
Coolant Through
Yes
Brand: Widia / Part #: 5537962
Item #: 97246631
Brand: Widia
Model #: 5537962Product Specifications
Maximum Drill Depth
6.7410 in
Drill Depth by Diameter Ratio
5xD
Maximum Depth of Cut (mm)
171.21
Shank Type
Weldon Flat
Shank Diameter (mm)
40.0000
Shank Diameter (Decimal Inch)
1.5748
Cutting Direction
Right Hand
Drill Body Length to Flange (mm)
207.00
Toolholder Style
TCF
Nose Diameter (Mm) ( - 2 Decimals)
34.00
Overall Length (mm)
278.2100
Overall Length
278.21
Through Coolant
Yes
Series
Top Cut 4
Flute Length (mm)
201.80
Shank Length (mm)
70.000
Gage Length (mm)
208.21
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Number of Shank Flats
1
Flute Type
Variable Index
Maximum Cutting Diameter (mm)
34.00
Projection (mm)
208.210
Number Of Flutes
2
Coolant Through
Yes
Brand: Widia / Part #: 5537963
Item #: 97246623
Brand: Widia
Model #: 5537963Product Specifications
Maximum Drill Depth
6.9390 in
Drill Depth by Diameter Ratio
5xD
Maximum Depth of Cut (mm)
176.24
Shank Type
Weldon Flat
Shank Diameter (mm)
40.0000
Shank Diameter (Decimal Inch)
1.5748
Cutting Direction
Right Hand
Drill Body Length to Flange (mm)
213.00
Toolholder Style
TCF
Nose Diameter (Mm) ( - 2 Decimals)
35.00
Overall Length (mm)
284.2400
Overall Length
284.24
Through Coolant
Yes
Series
Top Cut 4
Flute Length (mm)
207.70
Shank Length (mm)
70.000
Gage Length (mm)
214.24
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Number of Shank Flats
1
Flute Type
Variable Index
Maximum Cutting Diameter (mm)
35.00
Projection (mm)
214.240
Number Of Flutes
2
Coolant Through
Yes
Brand: Widia / Part #: 5537964
Item #: 97246599
Brand: Widia
Model #: 5537964Product Specifications
Maximum Drill Depth
7.1360 in
Drill Depth by Diameter Ratio
5xD
Maximum Depth of Cut (mm)
181.27
Shank Type
Weldon Flat
Shank Diameter (mm)
40.0000
Shank Diameter (Decimal Inch)
1.5748
Cutting Direction
Right Hand
Drill Body Length to Flange (mm)
219.00
Toolholder Style
TCF
Nose Diameter (Mm) ( - 2 Decimals)
36.00
Overall Length (mm)
290.2700
Overall Length
290.27
Through Coolant
Yes
Series
Top Cut 4
Flute Length (mm)
213.70
Shank Length (mm)
70.000
Gage Length (mm)
220.27
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Number of Shank Flats
1
Flute Type
Variable Index
Maximum Cutting Diameter (mm)
36.00
Projection (mm)
220.270
Number Of Flutes
2
Coolant Through
Yes
Brand: Widia / Part #: 5537965
Item #: 97246581
Brand: Widia
Model #: 5537965Product Specifications
Maximum Drill Depth
2.4190 in
Drill Depth by Diameter Ratio
2xD
Maximum Depth of Cut (Decimal Inch)
2.4190
Shank Type
Weldon Flat
Shank Diameter (Inch)
1-1/4
Shank Diameter (Decimal Inch)
1.2500
Cutting Direction
Right Hand
Drill Body Length to Flange (Decimal Inch)
3.6420
Toolholder Style
TCF
Nose Diameter (Decimal Inch - 4 Decimals)
1.1880
Overall Length (Decimal Inch)
6.0474
Overall Length
6.05
Through Coolant
Yes
Series
Top Cut 4
Flute Length (Decimal Inch)
3.4880
Shank Length (Decimal Inch)
2.3622
Gage Length (Decimal Inch)
3.6851
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Coolant Hole Thread Type
NPT
Coolant Hole Thread Size (Inch)
1/4-18
Number of Shank Flats
1
Flute Type
Helical Flute
Maximum Cutting Diameter (Decimal Inch)
1.1880
Number Of Flutes
2
Projection (Decimal Inch)
3.6851
Coolant Through
Yes
Brand: Widia / Part #: 5537966
Item #: 97245385
Brand: Widia
Model #: 5537966Product Specifications
Maximum Drill Depth
2.4640 in
Drill Depth by Diameter Ratio
2xD
Maximum Depth of Cut (Decimal Inch)
2.4640
Shank Type
Weldon Flat
Shank Diameter (Inch)
1-1/4
Shank Diameter (Decimal Inch)
1.2500
Cutting Direction
Right Hand
Drill Body Length to Flange (Decimal Inch)
3.7060
Toolholder Style
TCF
Nose Diameter (Decimal Inch - 4 Decimals)
1.2100
Overall Length (Decimal Inch)
6.1121
Overall Length
6.11
Through Coolant
Yes
Series
Top Cut 4
Flute Length (Decimal Inch)
3.5530
Shank Length (Decimal Inch)
2.3622
Gage Length (Decimal Inch)
3.7499
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Coolant Hole Thread Type
NPT
Coolant Hole Thread Size (Inch)
1/4-18
Number of Shank Flats
1
Flute Type
Helical Flute
Maximum Cutting Diameter (Decimal Inch)
1.2100
Number Of Flutes
2
Projection (Decimal Inch)
3.7499
Coolant Through
Yes
Brand: Widia / Part #: 5537967
Item #: 97246615
Brand: Widia
Model #: 5537967Product Specifications
Maximum Drill Depth
2.4820 in
Drill Depth by Diameter Ratio
2xD
Maximum Depth of Cut (Decimal Inch)
2.4820
Shank Type
Weldon Flat
Shank Diameter (Inch)
1-1/4
Shank Diameter (Decimal Inch)
1.2500
Cutting Direction
Right Hand
Drill Body Length to Flange (Decimal Inch)
3.7320
Toolholder Style
TCF
Nose Diameter (Decimal Inch - 4 Decimals)
1.2190
Overall Length (Decimal Inch)
6.1384
Overall Length
6.14
Through Coolant
Yes
Series
Top Cut 4
Flute Length (Decimal Inch)
3.5790
Shank Length (Decimal Inch)
2.3622
Gage Length (Decimal Inch)
3.7761
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Coolant Hole Thread Type
NPT
Coolant Hole Thread Size (Inch)
1/4-18
Number of Shank Flats
1
Flute Type
Helical Flute
Maximum Cutting Diameter (Decimal Inch)
1.2190
Number Of Flutes
2
Projection (Decimal Inch)
3.7761
Coolant Through
Yes
Brand: Widia / Part #: 5537968
Item #: 97246656
Brand: Widia
Model #: 5537968Product Specifications
Maximum Drill Depth
2.5450 in
Drill Depth by Diameter Ratio
2xD
Maximum Depth of Cut (Decimal Inch)
2.5450
Shank Type
Weldon Flat
Shank Diameter (Inch)
1-1/4
Shank Diameter (Decimal Inch)
1.2500
Cutting Direction
Right Hand
Drill Body Length to Flange (Decimal Inch)
3.8220
Toolholder Style
TCF
Nose Diameter (Decimal Inch - 4 Decimals)
1.2500
Overall Length (Decimal Inch)
6.2293
Overall Length
6.23
Through Coolant
Yes
Series
Top Cut 4
Flute Length (Decimal Inch)
3.6700
Shank Length (Decimal Inch)
2.3622
Gage Length (Decimal Inch)
3.8671
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Coolant Hole Thread Type
NPT
Coolant Hole Thread Size (Inch)
1/4-18
Number of Shank Flats
1
Flute Type
Helical Flute
Maximum Cutting Diameter (Decimal Inch)
1.2500
Number Of Flutes
2
Projection (Decimal Inch)
3.8671
Coolant Through
Yes
Brand: Widia / Part #: 5537969
Item #: 97246649
Brand: Widia
Model #: 5537969Product Specifications
Maximum Drill Depth
2.6080 in
Drill Depth by Diameter Ratio
2xD
Maximum Depth of Cut (Decimal Inch)
2.6080
Shank Type
Weldon Flat
Shank Diameter (Inch)
1-1/4
Shank Diameter (Decimal Inch)
1.2500
Cutting Direction
Right Hand
Drill Body Length to Flange (Decimal Inch)
3.9120
Toolholder Style
TCF
Nose Diameter (Decimal Inch - 4 Decimals)
1.2810
Overall Length (Decimal Inch)
6.3202
Overall Length
6.32
Through Coolant
Yes
Series
Top Cut 4
Flute Length (Decimal Inch)
3.7610
Shank Length (Decimal Inch)
2.3622
Gage Length (Decimal Inch)
3.9580
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Coolant Hole Thread Type
NPT
Coolant Hole Thread Size (Inch)
1/4-18
Number of Shank Flats
1
Flute Type
Helical Flute
Maximum Cutting Diameter (Decimal Inch)
1.2810
Number Of Flutes
2
Projection (Decimal Inch)
3.9580
Coolant Through
Yes
Brand: Widia / Part #: 5538060
Item #: 98096936
Brand: Widia
Model #: 5538060Product Specifications
Maximum Drill Depth
2.6730 in
Drill Depth by Diameter Ratio
2xD
Maximum Depth of Cut (Decimal Inch)
2.6730
Shank Type
Weldon Flat
Shank Diameter (Inch)
1-1/4
Shank Diameter (Decimal Inch)
1.2500
Cutting Direction
Right Hand
Drill Body Length to Flange (Decimal Inch)
4.0050
Toolholder Style
TCF
Nose Diameter (Decimal Inch - 4 Decimals)
1.3130
Overall Length (Decimal Inch)
6.4142
Overall Length
6.41
Through Coolant
Yes
Series
Top Cut 4
Flute Length (Decimal Inch)
3.8550
Shank Length (Decimal Inch)
2.3622
Gage Length (Decimal Inch)
4.0520
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Coolant Hole Thread Type
NPT
Coolant Hole Thread Size (Inch)
1/4-18
Number of Shank Flats
1
Flute Type
Helical Flute
Maximum Cutting Diameter (Decimal Inch)
1.3130
Number Of Flutes
2
Projection (Decimal Inch)
4.0520
Coolant Through
Yes
Brand: Widia / Part #: 5538061
Item #: 14270243
Brand: Widia
Model #: 5538061Product Specifications
Maximum Drill Depth
2.7990 in
Drill Depth by Diameter Ratio
2xD
Maximum Depth of Cut (Decimal Inch)
2.7990
Shank Type
Weldon Flat
Shank Diameter (Inch)
1-1/4
Shank Diameter (Decimal Inch)
1.2500
Cutting Direction
Right Hand
Drill Body Length to Flange (Decimal Inch)
4.1840
Toolholder Style
TCF
Nose Diameter (Decimal Inch - 4 Decimals)
1.3750
Overall Length (Decimal Inch)
6.5949
Overall Length
6.59
Through Coolant
Yes
Series
Top Cut 4
Flute Length (Decimal Inch)
4.0360
Shank Length (Decimal Inch)
2.3622
Gage Length (Decimal Inch)
4.2327
Primary Workpiece Material
Non-Ferrous Metal; Stainless Steel; Cast Iron; Super-alloys & Titanium; Steel
Primary Workpiece Material Code
P; S; K; M; N
Coolant Hole Thread Type
NPT
Coolant Hole Thread Size (Inch)
1/4-18
Number of Shank Flats
1
Flute Type
Helical Flute
Maximum Cutting Diameter (Decimal Inch)
1.3750
Number Of Flutes
2
Projection (Decimal Inch)
4.2327
Coolant Through
Yes