BH595-Aircraft Extension Drill Bit

• NAS907B (National Aerospace Standard)
• M7 high speed steel
• Right hand cutting direction, standard spiral
• 135° split point, self-centring eliminates walking
• Black oxide finish ; Application ; Portable or machine drilling in hard steels, stainless steel and other hard materials.
• Packaging and product are both recyclable

Specifications

• Material: High Speed Steel
• Drill Size: 5/16"
• Decimal Drill Size: 0.3125"
• Overall Length: 12"
• Flute Length: 3-3/16"

Additional Specifications

• Drill type: Fractional Sizes