Greenlee 50122720 Self-Feeding Spade Bit, 1" Diameter, Hexagonal Shank

Greenlee 50122720 Self-Feeding Spade Bit, 1" Diameter, Hexagonal Shank

The Greenlee 50122720 is a self-feeding spade bit engineered for fast, clean boring through hardwood, softwood, plywood, and drywall. Built with a 1.000 IN (25.400 MM) bit diameter and an overall length of 6-1/4 IN (158.800 MM), this bit is designed to pull itself through material with minimal operator pressure while maintaining a straight, accurate bore. The 1/4 IN (6.400 MM) hexagonal shank ensures a secure, slip-resistant grip in compatible drill chucks, making this bit a dependable choice for electricians, contractors, and tradespeople who need consistent hole quality on the jobsite. Whether it's used for electrical rough-in wire routing or general framing work, the 50122720 delivers reliable, repeatable performance across a wide range of common construction materials, and its compact footprint makes it easy to carry and store alongside other drill bit accessories in a tool bag or case.

Key Features

• Bit Diameter: 1.000 IN (25.400 MM) for consistent, accurately sized bores.
• Overall Length: 6-1/4 IN (158.800 MM) allows for reach through standard framing and deep material sections.
• Self-Feeding Design: Draws the bit into the workpiece, reducing operator push force and improving boring speed.
• Hexagonal Shank: 1/4 IN (6.400 MM) hex shank size delivers a secure chuck grip and reduces slippage during use.
• Application Versatility: Suited for boring hardwood, softwood, plywood, and drywall in electrical and construction rough-in work.
• Compact Footprint: Product dimensions of 8.800 IN length, 3.000 IN width, and 0.100 IN height keep the bit easy to store and transport in a tool bag.

Technical Specifications

• Application: For Bore Hardwood, Softwood, Plywood And Drywall
• Bit Diameter: 1.000 IN (25.400 MM)
• Country Of Origin: CN
• Overall Length: 6-1/4 IN (158.800 MM)
• Product Height: 0.100 IN
• Product Length: 8.800 IN
• Product Type: Self Feeding
• Product Width: 3.000 IN
• Shank Size: 1/4 IN (6.400 MM)
• Shank Type: Hexagonal
• Volume: 2.64 CI

Typical Applications

• Electrical Rough-In and Wire Routing
• Boring Through Hardwood and Softwood Framing
• Plywood Panel Drilling
• Drywall Penetration for Conduit and Cable Runs
• New Construction and Renovation Projects

Why Greenlee?

Greenlee builds tools that electricians and contractors rely on for demanding jobsite conditions, and the 50122720 self-feeding spade bit continues that standard with a precisely sized 1" diameter bore, a durable hexagonal shank, and a self-feeding design built for speed and control. It's a practical, purpose-built accessory for professionals who need reliable hole-boring performance across multiple material types, from wire routing in electrical rough-in to general-purpose boring in framing and panel materials on the jobsite.