Drilling Product Catalog

DRILLING | T-A® Replaceable Insert Drilling System

7/8 Series: 89.10 mm - 114.48 mm (3.5080" - 4.5070")

T-A® Drill Holders

Flange Shank Holders

Body

Shank

L 2

L 4

L 3

L 1

L 5

D 2

P 1

Flute

Length

Part No.

A30

22070S-50FM 25070S-50FM

Short

178.9 225.4 231.8 305.4 80.0 558.4 606.9 613.3 686.9 80.0

50 1/2 BSPT 50 1/2 BSPT

Extended

Straight

24070H-50FM

Standard

283.5 327.0 333.4 407.0 80.0

50 1/2 BSPT

Helical

22070S-200F 25070S-200F

Short

6.042 8.875 9.125 13.375 4.500 21.986 23.894 24.144 28.394 4.500

2 2

1/2 NPT 1/2 NPT

Extended

Straight

24070H-200F

Standard

11.161 12.875 13.125 17.375 4.500

2

1/2 NPT

Helical

NOTE: Stub length holders have a 3.175 mm (1/8") side pipe tap (P 2 ).

Connection Accessories

Admissible Tightening Torque*

Insert Screws 7619-IP25-1

Insert Driver

8IP-25 1750 N-cm (155.0 in-lbs) *Tightening torques are calculated with a friction coefficient of µ = 0.14 and develop 90% of ultimate yield strength. 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 section of the catalog. Visit www.alliedmachine.com/DeepHoleGuidelines for the most up-to-date information and procedures. Factory technical assistance is available for your specific applications through our Application Engineering department : appeng@alliedmachine.com. WARNING

A30: 113 - 139 A30: 103 - 105 Key on A30: 2

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

A30: 107

www.alliedmachine.com | 1.330.343.4283