Drillco 1318AR156 7/8″ Extra Length Drill 18″ OAL 1/2″ Shank is engineered for deep hole drilling in heavy-duty applications where extended reach and accuracy are essential. With an 18-inch overall length and general-purpose spiral flute geometry, this drill bit delivers reliable chip evacuation and consistent performance across a wide range of materials. The 1/2″ reduced shank ensures compatibility with standard drill chucks, while the hex nut design also allows secure attachment to impact wrenches. The
Drillco 1318AR156 is made from high-speed steel (HSS) for excellent strength and durability. It features Neo40 magnets in the shank to help prevent the reamer from falling out of the socket and a tapered point for easy hole realignment. This USA-made drill bit is ideal for deep hole drilling in structural, fabrication, and industrial operations.
Features:
- Premium high-speed steel (HSS) construction enhances wear resistance and strength
- General-purpose spiral flute design ensures smooth chip removal in deep drilling
- 1/2″ reduced shank enables use with standard drill chucks and handheld tools
- Hex nut shank allows compatibility with impact wrenches
- Tapered point ensures accurate realignment of previously drilled holes
- Neo40 magnets in the shank prevent the reamer from falling out of the socket
- Bridge length supports deeper drilling in thicker workpieces
Benefits:
- Perfect for deep hole drilling in structural steel and fabrication environments
- Improves chip flow and reduces downtime caused by clogging
- Compatible with a wide range of tools due to its reduced shank and hex nut design
- Magnetized shank offers extra security during high-torque drilling operations
Technical Specifications:
- Model: 1318AR156
- Size: 7/8″
- Overall Length: 18″
- Flute Design: General purpose, spiral flutes
- Point Type: Tapered point
- Material: High-speed steel (HSS)
- Shank Type: 1/2″ reduced shank with hex nut and Neo40 magnets
- Origin: Made in USA
- Application: Deep hole drilling in long or thick metal workpieces








