Utilizing high-frequency welding technology, this tool ensures firm and smooth welds, enabling accurate square hole punching for 86-type junction boxes with elegance and precision. Perfect for both professional electricians and DIY enthusiasts, this high-strength puncher simplifies electrical installations by effortlessly creating square holes in terminal boxes. Engineered with user comfort in mind, the ergonomic design of this hole puncher offers a secure grip to minimize hand fatigue during extended usage sessions. From drilling walls to cutting stones and bricks, this creative square hole cutting machine is indispensable for installing air conditioners, fume pumps, sewer pipe openings, and more. Crafted from premium chrome steel, this hole puncher guarantees precise and durable cutting for a lifetime of use. Upgrade your electrical installation projects with the efficiency and reliability of the hole puncher. Item Name: Square Hole Cutter Material: Chrome Steel Features: Long Lasting, Ergonomic Design, Practical Size Details: B, L: 14.5cm/5.71", W: 8.5cm/3.35" (Approx.) A, L: 19.5cm/7.68", W: 8.5cm/3.35" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Square Hole Cutter