Greenlee 50203487 33A Spade Bit, 1/2" Diameter, 6-1/4" Length, Hexagonal Shank

Greenlee 50203487 33A Spade Bit, 1/2" Diameter, 6-1/4" Length, Hexagonal Shank

The Greenlee 50203487 33A Spade Bit is a 1/2" (12.700 MM) diameter wood-boring bit engineered for fast, clean holes in hardwood, softwood, plywood, and drywall. With an overall length of 6-1/4" (158.800 MM) and a 1/4" (6.400 MM) hexagonal shank, this Greenlee spade bit is built for use with standard drill chucks and quick-change drivers commonly found on electrician and contractor job sites. Whether roughing in cable runs through wall studs or boring access holes for wiring and low-voltage cable, this bit delivers the reach and bore diameter needed for common in-wall electrical work. Its compact overall footprint keeps it easy to carry and store in a bit case or tool pouch, while the hexagonal shank profile resists slipping in the chuck under load, helping maintain accuracy hole after hole on demanding rough-in jobs.

Key Features

• Bit Diameter: 1/2" (12.700 MM) bore diameter sized for standard cable and conduit pass-through holes.
• Overall Length: 6-1/4" (158.800 MM) provides added reach through studs and framing members.
• Shank Type & Size: 1/4" (6.400 MM) hexagonal shank for secure, slip-resistant engagement in drill chucks and quick-release drivers.
• Application-Ready Design: Rated for boring hardwood, softwood, plywood, and drywall, making it a versatile choice for rough-in wiring, remodel work, and general carpentry-adjacent electrical tasks.
• Compact Footprint: Product dimensions of 8.9 IN length x 2.2 IN width x 1.1 IN height keep the bit easy to store and transport in a tool pouch or bit case.
• Volume: 0.242 CI overall material volume, consistent with its compact single-bit design.

Technical Specifications

• Application: For Bore Hardwood, Softwood, Plywood And Drywall
• Bit Diameter: 1/2 IN (12.700 MM)
• Country Of Origin: CN
• Overall Length: 6-1/4 IN (158.800 MM)
• Product Height: 1.1 IN
• Product Length: 8.9 IN
• Product Width: 2.2 IN
• Shank Size: 1/4 IN (6.400 MM)
• Shank Type: Hexagonal
• Volume: 0.242 CI

Typical Applications

• Boring Holes For Electrical Wiring And Cable Runs Through Wood Framing
• Rough-In Work For Residential And Commercial Electrical Installations
• General Purpose Boring In Hardwood, Softwood, And Plywood
• Access Hole Drilling In Drywall
• Remodel And New Construction Electrical Projects

Why Greenlee?

Greenlee builds tools and accessories for the demands of professional electricians, and the 50203487 spade bit is designed with the specific bore diameter, length, and hexagonal shank fit that field crews rely on for consistent performance. Its rated application range across hardwood, softwood, plywood, and drywall makes it a practical, dependable choice for rough-in wiring and remodel work where precise, clean holes matter. With defined dimensions across bit diameter, overall length, and shank size, this Greenlee spade bit is easy to match to the job at hand, giving electricians a reliable, code-ready option for boring pass-through holes during both new construction and remodel electrical work.