What people love (and donât love)
What people love
- Sharp, self-feeding auger drills well and cuts through wood easily.
- Functions effectively as a wire puller when taped with cables.
- Reasonably flexible for reaching inside walls and retrofitting cables.
- Good value compared to hiring professionals or buying at hardware stores.
- Works well with cordless and standard drills for various installation projects.
What people donât love
- Some users report it is not flexible or bendable as advertised.
- Build quality feels average, leading to concerns about durability.
- Can be tight for larger cables like Cat 6, better if wider diameter.
- Some experienced the bit breaking after minimal use.
- Does not have a fish eye hole as described in the product details.
A decent bit for light wire pulling jobs but may not flex or last well under heavy use.
Summary based on customer review evidence.
Quick facts
- Brand: Greycore
- Price: USD 25.99
- Rating: 4.20 (189 reviews)
If youâre running cable through studs, plates, or other wood framing, the Greycore Tools 9/16″ x 54″ Flexible Drill Bit is built to make the job smoother. Its long, flexible shank helps you maneuver in tight wall spaces, while the auger-style cutting head and screw point tip are designed to bite into wood and keep the bit moving forward.
You can view the current price and full details on Amazon here.
For pulling wire, this installer bit includes fish eye holes on both endsâhandy when you need to pull from either direction without backing out and re-threading. It also uses a 3-flat shank (3/16″ diameter) thatâs compatible with standard 3-point drill chucks and helps reduce slipping during drilling.
- 9/16″ x 54″ installer-style flexible drill bit with auger head
- Fish eye holes on both ends for pulling wire from either direction
- 3-flat 3/16″ shank fits standard 3-point drill chucks and helps resist slippage
- High Speed Steel (HSS) one-piece design with machine-sharpened cutting head and screw point tip
- Designed to drill through wood, including hardwoods, softwoods, plywood, and OSB
This is a solid pick for DIYers and pros who want a longer installer bit for routing wire in walls and other enclosed spaces where a standard-length bit wonât reach.











