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1TNX7 Non-Coolant-Through High-Speed Steel Jobber-Length Drill Bits 02

$2.18

Bulk orders will be discounted, please contact us.

The black-and-gold finish on these drill bits lubricates the bits and provides some resistance to wear and rust. Parabolic-flute drill bits have wide, deep flutes that improve chip flow and heat dissipation, which means feed rates do not need to be reduced as the drills move deeper into the workpiece. These bits have a straight shank that installs into a drill chuck or similar toolholder.

Product Number: 1TNX7

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  • Description
Mfr Model C18442
Cutting Direction Right Hand
Finish Machining Black & Gold
Measurement System Fractional Inch
Material Machining High Speed Steel
Drill Bit Point Angle 135 °
Drill Bit Point Type Split Point
Primary Material Application Aluminum and Non-Ferrous Material; Cast Iron; Steel
Coolant Fed Non-Coolant Through
Depth Dia Ratio 8xD
Flute Type Parabolic
Standards ASME B94.11M
UNSPSC 27112801
Country of Origin USA (subject to change)
Drill Length Class Jobber Length
Spiral Direction Right Hand
Drill Bit Size 1/4 in
Decimal Equivalent 0.25
Number of Flutes 2
Flute Length 2-3/4 in
Shank Type Machining Straight
Shank Length 1-1/4 in
Overall Length 4 in
Drill Point Length 0.0518 in
Drill Diameter Tolerance +0.0000 in/-0.0007 in
Sheeter Drill No
Material Grade Machining High Performance
Primary Material Application ISO Code K; N; P
Secondary Material Application Composite; Nickel; Titanium
Secondary Material Application ISO Code O; S
Series 1872
Maximum Drilling Depth 2-1/16 in
Helix Angle 35° to 45°
Aircraft Drill No
Web Thinning Thinned
Web Construction Tapered

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