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644M72 Non-Coolant-Through High-Speed Steel Jobber-Length Drill Bits

$78.30

Bulk orders will be discounted, please contact us.

Product Number: 644M72

Mfr Model	2649386
Cutting Direction	Right Hand
Finish Machining	Black Oxide
Measurement System	Wire
Material Machining	High Speed Steel
Drill Bit Point Angle	118 °
Drill Bit Point Type	Notched Point
Primary Material Application	Cast Iron; Steel
Coolant Fed	Non-Coolant Through
Depth Dia Ratio	4xD
Flute Type	Spiral
Standards	ASME
UNSPSC	27112801
Country of Origin	USA (subject to change)
Drill Length Class	Jobber Length
Spiral Direction	Right Hand
Drill Bit Size	#20
Decimal Equivalent	0.4375
Number of Flutes	2
Flute Length	9 in
Shank Type Machining	Straight
Shank Length	3 in
Overall Length	12 in
Drill Point Length	0.1314 in
Drill Diameter Tolerance	+0.0000 in /-0.0010 in
Sheeter Drill	No
Material Grade Machining	General Purpose
Primary Material Application ISO Code	K; P
Secondary Material Application	Composite
Secondary Material Application ISO Code	O
Series	255AN
Maximum Drilling Depth	1-3/4 in
Helix Angle	21° to 34°
Aircraft Drill	No
Web Thinning	Thinned

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