A91-SSD_US-EN

DRILLING | Structural Steel SoluƟons | T-A® and GEN2 T-A® Replaceable Insert Drills

T-A® and GEN2 T-A® Structural Steel Drilling System

A

Available in AM300® and AM200® Coating GEN2 T-A Insert

DRILLING

STRUCTURAL STEEL ENHANCEMENTS T-A ® GEN2 T-A ® &

B

High Efficiency (-HE)

BORING

• Improves performance. • Improves tool life. • Improves chip formaƟon in structural steel materials.

T-A Inserts

Available in AM200® and TiAlN Coatings

C

REAMING

Thin Wall (-TW)

Notch Point® (-NP)

Structural Steel (-SS)

• Designed for drilling 7/16" thick or less I-beam or structural materials. • Increases hole diameter tolerance. • Improves hole roundness. • Decreases material deflecƟon.

• Provides excellent self-centering characterisƟcs. • Reduces bellmouth and tool lead-off. • Reduces axial thrust requirements.

• Designed for drilling 7/16" thick or thicker I-beam or structural materials. • Reduces exit burrs. • Increases stability. • Lowers drilling forces. • Includes Notch Point® web geometry.

D

BURNISHING

2

Holder Anatomy 1. Morse Taper Shank 2. Coolant Inlet

3

E

1

3. Flute (straight or helical) 4. Built-up Body Diameter 5. Coolant Outlets

THREADING

4

5

X

SPECIALS

Helical Flute

Straight Flute

A91: 4

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