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DRILLING | T-A® Replaceable Insert Drilling System

Z

T-A® Drill Insert Holders Z Series | Flange Shank | Diameter Range: 0.437" - 0.510" (11.10 mm - 12.95 mm)

A

L 1

DRILLING

L 7

L 4

D 2

L 2

P 1

B

L 3

Helical Flute

Body

Shank

BORING

L 2

L 4

L 3

L 1

D 2

L 7

P 1

Length

Part No.

240Z0H-075F 245Z0H-075F 250Z0H-075F 260Z0H-075F 240Z0H-20FM 245Z0H-20FM 250Z0H-20FM 260Z0H-20FM

Standard

2.874 3.886 4.874 7.586

3.531 4.543 5.531 8.244

3.621 4.633 5.621 8.334

5.561 6.573 7.561

3/4 3/4 3/4 3/4

2.030 2.030 2.030 2.030

1/8 NPT 1/8 NPT 1/8 NPT 1/8 NPT 1/8 BSPT 1/8 BSPT 1/8 BSPT 1/8 BSPT

Standard Plus

Extended

Long

10.274

Standard

73.0 98.7

89.7

92.0

139.7 165.4 190.5 259.4

20 20 20 20

50.0 50.0 50.0 50.0

C

Standard Plus

115.4 140.5 209.4

117.7 142.8 211.7

Extended

123.8 192.7

Long

REAMING

D

BURNISHING

E

THREADING

ConnecƟon Accessories

Admissible Tightening Torque* 7.4 in-lbs (84 N-cm)

Insert Screws

Nylon Locking Screws

Insert Driver

Replacement Tips

Preset Torque Hand Driver

7247-IP7-1

7247N-IP7-1

8IP-7

8IP-7TL

8IP-7B

*Tightening torques are calculated with a fricƟon coefficient of µ = 0.14 and develop 90% of ulƟmate yield strength.

A30: 22 - 27

X

Key on A30: 1

= Imperial (in) = Metric (mm) Screws sold in quanƟƟes of 10.

SPECIALS

Refer to Speed and Feed charts for recommended adjustments to speeds and feeds. Refer to page A30: 146 for deep hole drilling guidelines in this secƟon of the catalog. Visit www.alliedmachine.com/DeepHoleGuidelines for the most up-to-date informaƟon and procedures. Factory technical assistance is available for your specific applicaƟons through our ApplicaƟon Engineering Team. WARNING

www.alliedmachine.com | 1.330.343.4283

A30: 29