A91-SSD_US-EN

DRILLING | Structural Steel Replaceable Insert Drilling System

T-A® Structural Steel Drilling System

A

Available in AM300® Coating GEN2 T-A Insert

DRILLING

STRUCTURAL STEEL ENHANCEMENTS T-A T-A GEN2 &

B

High Efficiency (-HE)

BORING

• Improves performance • Improves tool life • Improves chip formation 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 deflection

• Provides excellent self-centering characteristics • 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: 20

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