Description

Item=Extra Long Drill Bit
Drill Bit Dimension Type=Letter
Drill Bit Size=O
Decimal Equivalent=0.3160
Drill Bit Material=High Speed Steel
Drill Bit Finish=Bright
Drill Bit Point Angle=135 Degrees
Flute Length=3 3/16 in
Coolant Fed=Non-Coolant Through
Overall Length=12 in
Coolant Through=No
Depth:Dia. Ratio=10xD
Application=For Drilling Cast Iron, Carbon Steel, Alloy Steel, Die Steel, Stainless Steels, Hardened Steel Under 50 HrC and Titanium Alloys
Depth x Dia. Ratio=10xD
Cutting Direction=Right Hand
Flute Type=Spiral
Grade=Heavy Duty
Shank Dia.=5/16 in
Number of Flutes=2
Shank Type – Machining=Straight
Point Type=Split
Shank Type=Straight
List Number=3957-12
Standards=Not Rated
Point Angle=135
Material=HSS
Diameter=0.316
Left/Right Hand=Right
Drill Style=Aircraft Extension Drill
Shank Size=0.316
Shank Length=8 13/16 in
Measurement System=Letter
Series=3957-12
Finish – Machining=Bright (Uncoated)
Drill Length Class=Extra Long
Helix Angle=28 Degrees
Spiral Direction=Right Hand
Secondary Material Application=Cast Iron, Stainless Steel
Material – Machining=High Speed Steel
Secondary Material Application ISO Code=K, M
Aircraft Drill=Yes
Primary Material Application=Aluminum, Brass, Bronze, Copper, Steel
Drill Bit Point Type=Split Point
Primary Material Application ISO Code=N, P
Material Grade – Machining=High Performance
Drill Point Length=0.0000 in
Drill Diameter Tolerance=+0.0000 in /-0.0010 in
Maximum Drilling Depth=3 3/16 in