120/200/300mm Adjustable Circle Hole Cutter Wood Drywall Drill Bit Saw Round Cutting Blade Aircraft Type DIY Tool

📦 Product Introduction

This aircraft type hole opener supports free adjustment of hole radius and is available in three specifications: 30-120mm, 30-200mm, and 30-300mm. It is suitable for use with electric drills and is specifically designed for drilling holes in wooden boards, gypsum boards, density boards, and plastic boards. It is a commonly used tool for home lighting, ceiling construction, woodworking cutting of circular holes, and cabinet drilling. Flexible matching of different aperture requirements, without frequent replacement of drill bits, greatly improving construction efficiency.

✨ Core advantages of the product

🔸 Infinite adjustable aperture, multiple specifications to choose from

The horizontal support rod is marked with a scale, and the diameter of the opening can be accurately set by sliding the tool holder. It can be processed from small-sized inspection holes to large-sized cylinder light circular holes. The three ranges cover the vast majority of home decoration drilling conditions, including ceiling drilling, speaker drilling, and plastic pipe expansion, all of which can be adapted.

🔸 Center positioning Fried Dough Twists drill, no deviation during drilling

The middle is equipped with high-speed steel Fried Dough Twists centering drill as standard. When drilling, the center position of the circle is firmly locked, without deviation and knife shaking. The round holes are neat and smooth, and the edges are neat and free of burrs, reducing the workload of later polishing and trimming.

🔸 Hard alloy blade, sharp, wear-resistant, smooth cutting

The cutting blades on both sides are made of hard alloy material, with high hardness and sharp edges. They can cut gypsum boards without breaking edges, and cut solid wood and multi-layer boards smoothly without easily becoming hot or dull. They are durable for long-term continuous construction and can be replaced separately after blade wear.

🔸 Thickened carbon steel body, high-strength and not easily deformed

The overall bracket and spindle are made of thickened steel and processed together. The surface is treated with blackening and rust prevention, providing sufficient rigidity. The bracket will not shake or bend during high-speed rotation cutting, ensuring stable and safe operation. It is not easily broken or damaged during frequent use on construction sites.

🔸 Suitable for ordinary electric drills, with low entry barriers

Standard round handle structure, both household hand drills and lithium drills can be directly clamped and installed, with simple installation. Simply align with the marked points on the board and start the machine for operation. Decorators and DIY enthusiasts can easily operate it.

🛠️ Instructions for Use

Loosen the fixing screw, adjust the distance between the two blade heads according to the scale, and lock the size;

Clamp the handle of the hole opener into the chuck of the electric drill;

Align the centering drill with the hole mark on the board, cut into the board at low speed, and then push it at a constant speed to complete the hole opening.

⚠️ Precautions for use

During drilling operations, keep the handheld drill perpendicular to the board and avoid tilting it to prevent blade breakage;

It is recommended to cut solid wood panels with low feed speed to avoid high-speed friction and high temperature damage to the blades;

Regularly clean the sawdust and dust from the blade head, check the tightness of the fixing bolts, and ensure construction safety.