Description
Drillco 1312AR147 47/64″ Extra Length Drill 12″ OAL 1/2″ Shank is designed for demanding deep hole drilling applications requiring extended reach and enhanced durability. This 12″ overall length drill features a general purpose flute design for efficient chip evacuation and stable cutting performance. Crafted from premium grade cobalt high-speed steel, it offers superior hardness and heat resistance, making it ideal for drilling tougher materials. The 1/2″ round shank ensures secure chucking and reliable torque transmission in both portable and machine setups.
Features:
- 12″ overall length for accessing deep or hard-to-reach holes
- General purpose flute design optimized for smooth chip removal
- Premium grade cobalt high-speed steel construction for increased hardness and durability
- Self-centering 135° split-point reduces thrust and minimizes walking
- Bronze surface treatment enhances lubricity and wear resistance
- 1/2″ round shank for secure grip and improved stability in chucks
Benefits:
- Drills approximately 30% faster than standard HSS bits
- Excellent for tough materials including stainless steel and alloys
- Provides precise, stable drilling with minimal walking
- Efficient chip evacuation reduces clogging and heat buildup
- Durable design ensures long service life in demanding environments
Technical Specifications:
- Model: 1312AR147
- Drill Size: 47/64″
- Overall Length: 12″
- Flute Design: General purpose
- Material: Premium grade cobalt high-speed steel
- Point Angle: 135° split-point
- Surface Treatment: Bronze
- Shank Diameter: 1/2″
- Shank Type: Round





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