Universal Woodworking Square Opening Tool & Square Slot Knife
Universal Woodworking Square Opening Tool & Square Slot Knife
Couldn't load pickup availability
✅Cutting the electric box in seconds!
✅Saves a lot of time!

√One step in place
√No need to cut repeatedly
√Smooth cutting surfaces

Main Features
- Quickly and Effortlessly
- Cut-in single and double gang boxes quickly and effortlessly. Four blades are cutting at the same time, fast and simple, and the cutting surface is very smooth and tidy.

Precise Cutting
- Precisely create a single gang size of 2-3/8” x 3-3/4” or double gang size of 3-3/4” x 4” in the drywall, perfect for plastic, metal or low-voltage electrical boxes mounting.
- Fine and clean cutting makes the socket installation easier!

Strong and Durable
- High-quality stainless steel construction and laser cutting technology for durability and long life.

Wide Compatibility
- Compatible with most industry standard oscillating multi-tools in the market, such as Dewalt, Dremel, Makita, Porter-Cable, Ridgid, Rockwell, Fein Multimaster, Ryobi, Milwaukee, Chicago, Genesis, Craftsman, etc.
- Suitable for plasterboard, drywall, etc.

Widely Used
- Make single gang or double gang rectangular holes in drywall for wall boxes such as high and low voltage tech, electrician, telephone, alarm/ security, CCTV/ IP camera, antenna, automation, home-theater including CEDIA members, HAVC, drywall contractor/ installer, etc.

Attention:
Used for 18V, 20V, or corded oscillating multi-tools (some need an adapter). It will not work on 12V systems.
Specifications
Material: Stainless Steel
Color: Silvery, Black
Types: Rectangle, Square
Package Includes: 1pc x Square Slot Cutter
Worldwide Shipping ✈


- 🕒Processing Time: 2-5 business days (in-store process for stock and packaging).
- 🚚Shipping Time: North America (excluding Mexico): 7-15 business days; Europe & UK: 5-7 business days; Australia, New Zealand, Chile and other regions: 10-20 business days.
- ✉️Tracking Information: You will receive tracking information within 5 business days of purchase. Allow extra time during holidays and sale seasons. Contact us if you don't receive it after 5 days.
- 🚚Risk-Free Shipping: If your order doesn't arrive within 60 days, you will receive a full refund. Contact us for missing orders.
Limited stock remaining and will soon be sold out!

Sizing Chart
Give your customers further information about choosing the correct size.
I was skeptical at first, but this slot knife proved its worth. It fits most standard multi-tools and cuts quickly without needing multiple passes. The cutouts are always square and smooth — saves effort and reduces waste. For anyone doing drywall electrical work or renovation, this is one of the best accessories you can get. No complaints at all.
The stainless steel construction and laser-cut precision give this tool a premium feel. I’ve used it several times already and it still cuts as clean as day one. Compatible with my oscillating multi-tool (Makita), so installation was straightforward. It’s a simple but powerful addition to my toolkit — excellent value for the price
I’ve used this tool to cut both single-gang and double-gang box openings. The four blades work simultaneously, making the entire process quick and easy. The slot cut is precise and tidy which makes fitting the boxes a breeze. Great for anyone doing home wiring or renovation. I was impressed by its performance from the first use.
I needed to install several electrical and low-voltage boxes in my drywall and this slot knife made the job effortless. Cuts were clean, straight, and smooth — no chipping or rough edges. It saved me tons of time compared to doing it manually with a saw or chisel. Highly durable stainless steel build, so I expect it to last many more jobs. Would buy again for future projects.
I've already recommended this product to my friends. It's that good!