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441N85 Taper-Shank Drill Bits

$196.12

Bulk orders will be discounted, please contact us.

The bright finish on these drill bits is not affected when the bits' cutting edges are resharpened. High-speed steel drill bits provide more flexibility and absorb more shock and vibration than cobalt and carbide drill bits, making them suitable for use in manual drilling machines and handheld power tools. They may leave a rough finish on the hole. These bits have spiral flutes that evacuate chips as the bits drill into a workpiece.

Product Number: 441N85

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  • Description
Mfr Model A4244-21
Measurement System Metric
Drill Bit Size 21.00 mm
Decimal Equivalent 0.8268
Maximum Drilling Depth 5-11/16 in
Overall Length 243.00 mm
Shank Type Machining Taper
Finish Machining Bright (Uncoated)
Material Machining High Speed Steel
Primary Material Application Nickel; Stainless Steel; Titanium
UNSPSC 23171609
Country of Origin Brazil (subject to change)
Cutting Direction Right Hand
Flute Length 5-11/16 in
Flute Type Spiral
Standards DIN 345
Drill Bit Point Angle 130 °
Drill Bit Point Type Conventional Point
Number of Flutes 2
Spiral Direction Right Hand
Helix Angle 35° to 45°
Depth Dia Ratio 8xD
Primary Material Application ISO Code M; S
Material Grade Machining HSS-E
Coolant Fed Non-Coolant Through
Drill Diameter Tolerance H8
Secondary Material Application Aluminum; Brass; Bronze; Copper; Steel
Secondary Material Application ISO Code N; P

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