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441Y71 Non-Coolant-Through High-Speed Steel Jobber-Length Drill Bits 02

$27.17

Bulk orders will be discounted, please contact us.

The AlCrN coating on these drill bits protects them from wear during dry, high-speed machining applications. It is harder, resists cracking and oxidization better, and performs better in high-feed applications than a TiAlN coating. It also resists high heat better than an AlTiN coating. 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: 441Y71

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  • Description
Mfr Model A1249XPL-7
Cutting Direction Right Hand
Finish Machining AlCrN
Measurement System Metric
Material Machining High Speed Steel
Drill Bit Point Angle 130 °
Drill Bit Point Type Conical Point
Primary Material Application Aluminum; Brass; Bronze; Cast Iron; Copper; Stainless Steel; Steel
Coolant Fed Non-Coolant Through
Depth Dia Ratio 8xD
Flute Type Parabolic
Standards DIN 338
UNSPSC 27112801
Country of Origin France (subject to change)
Drill Length Class Jobber Length
Spiral Direction Right Hand
Drill Bit Size 7.00 mm
Decimal Equivalent 0.2756
Number of Flutes 2
Flute Length 69.00 mm
Shank Type Machining Straight
Shank Length 40.00 mm
Overall Length 109.00 mm
Drill Point Length 1.63mm
Drill Diameter Tolerance H8
Sheeter Drill No
Material Grade Machining XPL
Primary Material Application ISO Code K; M; N; P
Secondary Material Application Composite; Nickel; Titanium
Secondary Material Application ISO Code O; S
Series UFL
Maximum Drilling Depth 69 mm
Helix Angle 21° to 34°
Aircraft Drill Yes
Web Thinning Thinned

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