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Countersink /
HSS

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Chamfer Angle

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60.0°

82.0°

90.0°

Coating

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Alumina

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Countersink Size

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#0

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#2

#20

#3

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#4-1/2

#5

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#8

#9

Cut Diameter Max

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0.2090 5.30MM - #4

1.0000 25.40MM

1.5000 38.10MM - 1-1/2

2.0000 50.80MM

Cut Diameter Min

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0.0313 0.79MM - 1/32 - #0

0.1181 3.00MM

0.1574 4.00MM

0.1875 4.76MM - 3/16

0.1890 4.80MM - #12

0.1935 4.91MM - #10

0.1969 5.00MM

0.1990 5.05MM - #8

0.2040 5.18MM - #6

0.2055 5.22MM - #5

0.2362 6.00MM

0.2500 6.35MM - 1/4 - E

0.3125 7.94MM - 5/16

0.3150 8.00MM

0.3750 9.53MM - 3/8

0.3937 10.00MM

0.4724 12.00MM

0.5000 12.70MM - 1/2

0.6250 15.88MM - 5/8

Cutter Type

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Countersink

Countersink Set

Cutting Edge Definition

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along with more than 0.60% carbon.

and Co. These steels are mainly used for cutting tools

High speed steels (often abbreviated HSS) are ferrous based alloys of the Fe–C–X multicomponent system where X represents a group of alloying elements comprising mainly Cr

since they are characterized by their capacity to retain a high level of hardness while cutting metals at high speed. Generally

the X component is present in excess of 7%

V

W or Mo

Cutting Edge Material

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HSS

End Of Tool Shape

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Single

Family Group

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Link

Flute Type

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Flutes Or Inserts

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1

2

3

4

6

Hand

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Right Hand

Included Angle

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100°

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90°

Mach Side Connection Size

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0.1250 3.18MM - 1/8

0.1574 4.00MM

0.1875 4.76MM - 3/16

0.1969 5.00MM

0.2480 6.30MM

0.2500 6.35MM - 1/4 - E

0.3125 7.94MM - 5/16

0.3150 8.00MM

0.3750 9.53MM - 3/8

0.3937 10.00MM

0.4375 11.11MM - 7/16

0.4921 12.50MM

0.5000 12.70MM - 1/2

0.6250 15.88MM - 5/8

0.6299 16.00MM

0.7500 19.05MM - 3/4

0.7874 20.00MM

0.8750 22.23MM - 7/8

0.9842 25.00MM

1.0000 25.40MM

Machine Side (Toolpost)

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CYLINDRICAL0.1250

CYLINDRICAL0.1575

CYLINDRICAL0.1875

CYLINDRICAL0.1969

CYLINDRICAL0.2480

CYLINDRICAL0.2500

CYLINDRICAL0.3125

CYLINDRICAL0.3150

CYLINDRICAL0.3750

CYLINDRICAL0.3937

CYLINDRICAL0.4375

CYLINDRICAL0.4921

CYLINDRICAL0.5000

CYLINDRICAL0.6250

CYLINDRICAL0.6299

CYLINDRICAL0.7500

CYLINDRICAL0.7874

CYLINDRICAL0.8750

CYLINDRICAL0.9843

CYLINDRICAL1.0000

Machine Side (Toolpost) Connection Type

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Cylindrical

Made In USA

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No

YES

Overall Length

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0.8130 20.65MM

1.2200 30.99MM

1.2500 31.75MM

1.3125 33.34MM

1.4764 37.50MM

1.5625 39.69MM

1.6535 42.00MM

1.7500 44.45MM

1.8504 47.00MM

1.8750 47.63MM

1.9685 50.00MM

2.0000 50.80MM

2.0472 52.00MM

2.1250 53.98MM

2.1260 54.00MM

2.2500 57.15MM

2.3228 59.00MM

2.4803 63.00MM

2.5000 63.50MM

2.5984 66.00MM

2.7500 69.85MM

2.7560 70.00MM

2.9134 74.00MM

2.9921 76.00MM

3.0000 76.20MM

3.1250 79.38MM

3.2283 82.00MM

3.2500 82.55MM

3.2677 83.00MM

3.5000 88.90MM

3.5039 89.00MM

3.6250 92.08MM

3.7500 95.25MM

4.0000 101.60MM

4.0551 103.00MM

5.0000 127.00MM

6.0000 152.40MM

Pilot Hole Diameter

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0.0197

0.0200

0.0250

0.0313

0.0315

0.0394

0.0469

0.0492

0.0625

0.0630

0.0781

0.0787

0.0938

0.0984

0.1094

0.1240

0.1250

0.1406

0.1563

0.1575

0.1875

0.1969

0.2188

0.2480

0.2500

0.3125

0.3150

0.3438

0.3750

Shank Or Pilot Diameter

Select Any Shank Or Pilot Diameter ▼

0.1250 3.17MM - 1/8

0.1574 4.00MM

0.1875 4.76MM - 3/16

0.1969 5.00MM

0.2480 6.30MM

0.2500 6.35MM - 1/4 - E

0.3125 7.93MM - 5/16

0.3150 8.00MM

0.3750 9.52MM - 3/8

0.3937 10.00MM

0.4375 11.11MM - 7/16

0.4921 12.50MM

0.5000 12.70MM - 1/2

0.6250 15.88MM - 5/8

0.6299 16.00MM

0.7500 19.05MM - 3/4

0.7874 20.00MM

0.8750 22.23MM - 7/8

1.0000 25.40MM

Shipping State

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ILLINOIS

MICHIGAN

Ontario

Tool Diameter

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0.0781 1.98MM - 5/64

0.1181 3.00MM

0.1250 3.18MM - 1/8

0.1563 3.97MM - 5/32

0.1575 4.00MM

0.1875 4.76MM - 3/16

0.1890 4.80MM - #12

0.1935 4.91MM - #10

0.1969 5.00MM

0.1990 5.05MM - #8

0.2040 5.18MM - #6

0.2055 5.22MM - #5

0.2344 5.95MM - 15/64

0.2362 6.00MM

0.2480 6.30MM

0.2500 6.35MM - 1/4 - E

0.3125 7.94MM - 5/16

0.3150 8.00MM

0.3750 9.53MM - 3/8

0.3937 10.00MM

0.4062 10.32MM - 13/32

0.4375 11.11MM - 7/16

0.4724 12.00MM

0.4921 12.50MM

0.5000 12.70MM - 1/2

0.5313 13.50MM - 17/32

0.6250 15.88MM - 5/8

0.6299 16.00MM

0.7500 19.05MM - 3/4

0.7813 19.85MM - 25/32

0.7874 20.00MM

0.8750 22.23MM - 7/8

0.9844 25.00MM - 63/64

1.0000 25.40MM

1.0625 26.99MM - 1-1/16

1.2500 31.75MM - 1-1/4

1.4688 37.31MM - 1-15/32

1.5000 38.10MM - 1-1/2

1.7500 44.45MM - 1-3/4

2.0000 50.80MM

2.5000 63.50MM - 2-1/2

3.0000 76.20MM

Tool Material

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High Speed Steel

Type of Tool

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Drill

Hole Making

Filter by manufacturer

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STM

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HSS

HSS Subcategories

Set

Picture for category Set

Sort by

Picture of STM 121278 1" 90º 6-Flute HSS Countersink

STM 121278 1" 90º 6-Flute HSS Countersink

Part Number: SOW121278

$0.00

Picture of STM 121275 3/4" 100º 6-Flute HSS Countersink

STM 121275 3/4" 100º 6-Flute HSS Countersink

Part Number: SOW121275

$0.00

Picture of STM 121285 2" 100º 6-Flute HSS Countersink

STM 121285 2" 100º 6-Flute HSS Countersink

Part Number: SOW121285

$0.00

Picture of STM 121281 1-1/4" 100º 6-Flute HSS Countersink

STM 121281 1-1/4" 100º 6-Flute HSS Countersink

Part Number: SOW121281

$0.00

Picture of STM 121283 1-1/2" 100º 6-Flute HSS Countersink

STM 121283 1-1/2" 100º 6-Flute HSS Countersink

Part Number: SOW121283

$0.00

Picture of STM 121286 2-1/2" 90º 6-Flute HSS Countersink

STM 121286 2-1/2" 90º 6-Flute HSS Countersink

Part Number: SOW121286

$0.00

Picture of STM 121288 3" 90º 6-Flute HSS Countersink

STM 121288 3" 90º 6-Flute HSS Countersink

Part Number: SOW121288

$0.00

Picture of STM 121298 5/16" 110º 6-Flute HSS Countersink

STM 121298 5/16" 110º 6-Flute HSS Countersink

Part Number: SOW121298

$0.00

Picture of STM 121296 1/4" 110º 6-Flute HSS Countersink

STM 121296 1/4" 110º 6-Flute HSS Countersink

Part Number: SOW121296

$0.00

Picture of STM 121294 3/16" 110º 6-Flute HSS Countersink

STM 121294 3/16" 110º 6-Flute HSS Countersink

Part Number: SOW121294

$0.00

Picture of STM 121300 3/8" 110º 6-Flute HSS Countersink

STM 121300 3/8" 110º 6-Flute HSS Countersink

Part Number: SOW121300

$0.00

Picture of STM 121302 1/2" 110º 6-Flute HSS Countersink

STM 121302 1/2" 110º 6-Flute HSS Countersink

Part Number: SOW121302

$0.00

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