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DRILLING | T-A Pro® High PenetraƟon Replaceable Insert Drilling System

Imperial Chamfer Thread Size & Pilot Insert

Unified Standard Threads Series Thread Size

ISO Metric Standard Threads Series Thread Size

Thread Major

Pilot Insert No. TA # Y-9.50

Thread Major

Pilot Insert No.

Holder Part No.

Holder Part No.

M11 x 1 0.4331 TA # Y-10.00

7/16" - 14 0.4370

HTAYAC45 -XXXX

1/2" - 13 0.5000 TA # Y-10.72 9/16" - 12 0.5620 TA # Z-12.30 HTAZAC45 -XXXX 5/8" - 11 0.6250 TA # 0-13.49 HTA0AC45 -XXXX 3/4" - 10 0.7500 TA # 0-16.67 HTA0CC45 -XXXX 7/8" - 9 0.8750 TA # 1-19.45 HTA1AC45 -XXXX 1" - 8 1.0000 TA # 1-22.23 HTA1CC45 -XXXX 1-1/8" - 7 1.1250 TA # 2-25.00 HTA2AC45 -XXXX 1-1/4" - 7 1.2500 TA # 2-28.17 1-3/8" - 6 1.3750 TA # 2-30.96 1-1/2" - 6 1.5000 TA # 2-34.13 1-3/4" - 5 1.7500 TA # 3-39.29 HTA3AC45 -XXXX 2" - 4.5 2.0000 TA # 3-45.24 HTA3CC45 -XXXX TA # Y-9.92 HTAYAC45 -XXXX 1/2" - 20 0.5000 TA # Z-11.51 HTAZAC45 -XXXX 9/16" - 18 0.5620 TA # 0-12.90 HTA0AC45 -XXXX 5/8" - 18 0.6250 TA # 0-14.50 3/4" - 16 0.7500 TA # 0-17.46 HTA0CC45 -XXXX 7/8" - 14 0.8750 TA # 1-20.50 HTA1AC45 -XXXX 1" - 12 1.0000 TA # 1-23.42 HTA1CC45 -XXXX 1-1/8" - 12 1.1250 TA # 2-26.59 HTA2AC45 -XXXX 1-1/4" - 12 1.2500 TA # 2-29.70 HTA2CC45 -XXXX 1-3/8" - 12 1.3750 TA # 2-32.90 1-1/2" - 12 1.5000 TA # 2-36.00 HTA3AC45 -XXXX 7/16" - 28 0.4370 TA # Y-10.20 HTAYAC45 -XXXX 1/2" - 28 0.5000 TA # Z-11.80 HTAZAC45 -XXXX 9/16" - 24 0.5620 TA # 0-13.30 HTA0AC45 -XXXX 5/8" - 24 0.6250 TA # 0-14.90 3/4" - 20 0.7500 TA # 1-17.86 HTA1AC45 -XXXX 7/8" - 20 0.8750 TA # 1-21.00 HTA1CC45 -XXXX 1" - 20 1.0000 TA # 1-24.20 1-1/8" - 18 1.1250 TA # 2-27.20 HTA2AC45 -XXXX 1-1/4" - 18 1.2500 TA # 2-30.40 HTA2CC45 -XXXX 1-3/8" - 18 1.3750 TA # 2-33.60 1-1/2" - 18 1.5000 TA # 2-36.70 HTA3AC45 -XXXX M12 x 1.75 0.4724 TA # Y-10.30 M14 x 2 0.5512 TA # Z-12.00 HTAZAC45 -XXXX M16 x 2 0.6299 TA # 0-14.00 HTA0AC45 -XXXX M18 x 2.5 0.7087 TA # 0-15.50 HTA0CC45 -XXXX M20 x 2.5 0.7874 TA # 0-17.50 M22 x 2.5 0.8661 TA # 1-19.50 HTA1AC45 -XXXX M24 x 3 0.9449 TA # 1-21.00 HTA1CC45 -XXXX M27 x 3 1.0630 TA # 1-24.00 M30 x 3.5 1.1811 TA # 2-26.50 HTA2AC45 -XXXX M33 x 3.5 1.2992 TA # 2-29.50 HTA2CC45 -XXXX M36 x 4 1.4173 TA # 2-32.00 M39 x 4 1.5354 TA # 2-35.00 M42 x 4.5 1.6535 TA # 3-37.50 HTA2CC45 -XXXX 7/16" - 20 0.4370 Thread Major Pilot Insert No. TA # Y-9.50 Holder Part No. M11 x 1.5 0.4331 HTAYAC45 -XXXX

HTAYAC45 -XXXX M11 x 0.75 0.4331 TA # Y-10.30 M12 x 1.5 0.4724 TA # Y-10.50 M12 x 1.25 0.4724 TA # Y-10.80 M12 x 1 0.4724 TA # Y-11.00 M14 x 1.5 0.5512 TA # Z-12.50 HTAZAC45 -XXXX M14 x 1.25 0.5512 TA # 0-12.80 HTA0AC45 -XXXX M14 x 1 0.5512 TA # 0-13.00 M16 x 1.5 0.6299 TA # 0-14.50 M16 x 1 0.6299 TA # 0-15.00 M18 x 2 0.7087 TA # 0-16.00

Coarse (UNC)

A25

M18 x 1.5 0.7087 TA # 0-16.50 M18 x 1 0.7087 TA # 0-17.00 M20 x 2 0.7874 TA # 1-18.00 M20 x 1.5 0.7874 TA # 1-18.50 M20 x 1 0.7874 TA # 1-19.00 M22 x 2 0.8661 TA # 1-20.00 M22 x 1.5 0.8661 TA # 1-20.50 M22 x 1 0.8661 TA # 1-21.00 M24 x 2 0.9449 TA # 1-22.00 M24 x 1.5 0.9449 TA # 1-22.50 M24 x 1 0.9449 TA # 1-23.00 M27 x 2 1.0630 TA # 2-25.00 M27 x 1.5 1.0630 TA # 2-25.50 M27 x 1 1.0630 TA # 2-26.00 M30 x 3 1.1811 TA # 2-27.00 M30 x 2 1.1811 TA # 2-28.00 M30 x 1.5 1.1811 TA # 2-28.50 M30 x 1 1.1811 TA # 2-29.00 M33 x 3 1.2992 TA # 2-30.00 M33 x 2 1.2992 TA # 2-31.00 M33 x 1.5 1.2992 TA # 2-31.50 M36 x 3 1.4173 TA # 2-33.00 M36 x 2 1.4173 TA # 2-34.00 M36 x 1.5 1.4173 TA # 2-34.50 M39 x 3 1.5354 TA # 3-36.00 M39 x 2 1.5354 TA # 3-37.00 M39 x 1.5 1.5354 TA # 3-37.50 M42 x 4 1.6535 TA # 3-38.00 M42 x 3 1.6535 TA # 3-39.00 M42 x 2 1.6535 TA # 3-40.00 M42 x 1.5 1.6535 TA # 3-40.50 M45 x 4 1.7717 TA # 3-41.00 M45 x 3 1.7717 TA # 3-42.00 M45 x 2 1.7717 TA # 3-43.00 M45 x 1.5 1.7717 TA # 3-43.50 M48 x 4 1.8898 TA # 3-44.00 M48 x 3 1.8898 TA # 3-45.00 M48 x 2 1.8898 TA # 3-46.00 M48 x 1.5 1.8898 TA # 3-46.50

HTA0CC45 -XXXX

HTA1AC45 -XXXX

Fine (UNF)

HTA1CC45 -XXXX

HTA2AC45 -XXXX

Fine (MF)

Extra Fine (UNEF)

HTA2CC45 -XXXX

ISO Metric Standard Threads Series Thread Size

HTA3AC45 -XXXX

HTA3CC45 -XXXX

Coarse (MC)

HTA3AC45 -XXXX

M45 x 4.5 1.7717 TA # 3-40.50 M48 x 5 1.8898 TA # 3-43.00

HTA3CC45 -XXXX

M52 x 5 2.0472 TA # 3-47.00 NOTE: All diameters listed are for cuƫng taps and thread mills. # - Denotes insert ISO code ( P (steel), M (stainless steel), K (cast iron), N (nonferrous), X (high-speed steel substrate)).

A25: 51 - 61

Key on A25: 2

A25: 45

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