Search Products

431D78 Solid Carbide Extended-Length Drill Bits

$222.68

Bulk orders will be discounted, please contact us.

Helical-flute drill bits create smaller chips and evacuate them more quickly than standard spiral-flute drill bits. These drill bits have a TiAlN coating that withstands high temperatures and protects the bits from wear during high-speed, dry machining applications with difficult-to-machine ferrous metals. Coolant-through drill bits have holes that allow coolant to flow to their tip to reduce heat and help clear chips during drilling.

Product Number: 431D78

SEND INQUIRY

  • Description
Mfr Model TDD106Z06350
Measurement System Fractional Inch
Drill Bit Size 1/4 in
Decimal Equivalent 0.2500
Maximum Drilling Depth 136.00 mm
Overall Length 197.00 mm
Shank Type Machining Straight
Finish Machining TiAlN
Material Machining Carbide
Primary Material Application Cast Iron; Stainless Steel; Steel
UNSPSC 27112801
Country of Origin Germany (subject to change)
Cutting Direction Right Hand
Flute Length 151.00 mm
Flute Type Helical
Standards ANSI; ISO
Drill Bit Point Angle 132 °
Drill Bit Point Type Conical Point
Number of Flutes 2
Spiral Direction Right Hand
Depth Dia Ratio 20xD
Shank Dia 7.00 mm
Primary Material Application ISO Code K; M; P
Material Grade Machining WU20PD
Drill Length Class Extra Long
Sheeter Drill No
Drill Point Length 1.3240mm
Shank Length 38.00 mm
Coolant Fed Coolant Through
Drill Diameter Tolerance H7
Secondary Material Application Hardened Steel
Secondary Material Application ISO Code H
Number of Coolant Holes 2
× Success!success