OSG A-Brand

AT-1 Advanced Performance Taps for a Variety of Materials

List 16625 AT-1, Helical Flute

SPEED FEED P21

h6 SHANK

CARBIDE EgiAs

11˚

Type 1

Type 2

Lc

Lc

L1

L

L

Units: Inch

Cutter Diameter

Overall Length

Length of Cut

Neck Length

Shank Diameter

EDP Number

No. of Flutes

Size reads Per Inch

Type

D

L

Lc

L1

d

EgiAs

20 28 18 24 16 24 13 20 11 18 10 16

0.600 0.607 0.778 0.750 0.875 1.154 1.100 1.454 1.389 1.700 1.626 2.250 2.167

0.700 0.680 0.889 0.833 1.000 0.958 1.308 1.200 1.636 1.500 1.900 1.750 2.500 2.334

OSG1662500017 OSG1662500117 OSG1662500317 OSG1662500417 OSG1662500617 OSG1662500717 OSG1662501217 OSG1662501317 OSG1662501817 OSG1662501917 OSG1662502117 OSG1662502217 OSG1662502717 OSG1662502917

1/4

0.179

3.000

1/4

5/16

0.224

4

1

3/8

0.264

5/16

3.500

1/2

0.343

3/8

5/8

0.421

5

1

3/4

0.461

8

1

0.736

6.000

3/4

6

12

Packed: 1 pc. Available in EgiAs coating only. For internal threads only.

ATP

Work Material

P

M

K

N

S

H

Carbon Steels

Alloy Steels Die Steels

Stainless Steels

Aluminum Nickel Alloy Titanium

Hardened Steels

Cast Iron

Low Med.

High

List No.

1010 1018

1035 1045 1065

4140 4340

6061 7075 Casting Inconel

6Al4V (30 HRC)

~35 HRC

35-45 HRC

45-50 HRC

50-70 HRC

300 400 17-4 PH

16625

good

best

10

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