Jobber Drill 5/16 Cobalt MPN:44920

These drill bits meet National Aerospace Specification (NAS) 907 Type J for drill bits used in aircraft repair and production. They have a TiAlN coating that withstands high temperatures and protects the bits from wear during high-speed, dry machining applications with difficult-to-machine ferrous metals. They also have spiral flutes that evacuate chips as the bits drill into a workpiece.

Technical Specifications

• Item Jobber Length Drill Bit
• Drill Bit Size 5/16 in
• Decimal Equivalent 0.3125
• Measurement System Fractional Inch
• Material - Machining Cobalt
• Finish - Machining TiAlN
• Drill Bit Point Angle 135 Degrees
• Drill Bit Point Type Split Point
• Coolant Fed Non-Coolant Through
• Flute Type Spiral
• Number of Flutes 2
• Flute Length 3 3/16 in
• Maximum Drilling Depth 1 1/4 in
• Helix Angle 28 Degrees
• Cutting Direction Right Hand
• Spiral Direction Right Hand
• Shank Type - Machining Straight
• Shank Dia. 5/16 in
• Shank Length 1 5/16 in
• Overall Length 4 1/2 in
• Depth:Dia. Ratio 4xD
• Drill Length Class Jobber Length
• Drill Point Length 0.0647 in
• Drill Bit Grouping Individual
• Series 55TA
• Standards NAS 907 Type J
• Aircraft Drill Yes
• Drill Diameter Tolerance +0.0000 in /-0.0010 in
• Material Grade - Machining M42
• Primary Material Application Stainless Steel, Steel, Titanium, Tool and Die Steel
• Primary Material Application ISO Code M, P, S

Manufacturer Details

• Manufacturer: Chicago-Latrobe
• Condensed Mfg Number: 44920
• MPN: 44920

Label Details

• Hazardous Material: N
• Green Material Flag: N
• Country of Origin: US
• CA Prop 65 Wht Label: N

Classification Details

• Harmonization Code: 8207504030
• GDS Category Name: Jobber Length Drill Bits
• GDS Family Name: Drilling and Holemaking
• GDS Segment Name: Machining
• UNSPSC: 27112801
• UNSPSC Class ID: 28
• UNSPSC Commodity Name: Tool attachments and accessories
• UNSPSC Commodity ID: 01
• UNSPSC Commodity Name: Drill bits
• UNSPSC Family ID: 11
• UNSPSC Family Name: Hand tools
• UNSPSC Segment ID: 27
• UNSPSC Segment Name: Tools and General Machinery

Shipping Details

• Not For Sale In: HI AK PR