Quick facts
- Brand: HARFINGTON
- Price: USD 9.99
- Rating: 4.60 (191 reviews)
If you need a full 3/4″ cutting diameter but your drill has a standard 3/8″ chuck, this HARFINGTON reduced-shank twist drill bit is built for that exact job. It pairs a 3/4″ cutting edge with a 3/8″ shank, helping you drill larger holes without upgrading your chuck.
You can view the current price and full details on Amazon here.
Made from 4241 high-speed steel (HSS) with a nitriding black surface treatment, it’s designed for hardness, wear resistance, and improved corrosion resistance during everyday shop and home-maintenance work. The 118° point is a go-to geometry for general drilling tasks in wood and common metals.
Use it on wood, plastic, and soft-to-medium hardness materials such as copper, aluminum, and iron. For best results, keep the drill perpendicular (90°) to the work surface and start with a smaller pilot hole when stepping up to larger diameters for cleaner, more accurate positioning.
- 3/4″ cutting diameter with a 3/8″ reduced shank to fit many standard chucks
- 4241 HSS construction with nitriding black finish for wear and corrosion resistance
- 118° point for quick, general-purpose drilling in wood and metal
- 3-flat shank helps reduce slipping in the chuck
- Works on wood, plastic, copper, aluminum, and iron; not for stainless steel
What you get: 1 drill bit (6″ total length; 3.2″ flute length).
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