3 Pcs Bi-Metal Hole Saw Sets 20 25 35mm M42 Bimetal Circular Hole Drill Kit Hex Shank Holesaw Kit for Wood Metal Copper Plaster PVC Steel Plate Drywall

• 【Hole Saw Set】 This set includes 20mm, 25mm, and 35mm (25/32 inch, 1 inch, and 1-3/8 inch) bi-metal hole saws.
• 【Premium M42 Bi-Metal】 The hole saws are made of professional-grade M42 bi-alloy with hardness HRC 67–70, offering longer service life than standard models. Suitable for cutting various materials: thin stainless steel, aluminum, wood, plastic, PVC, and sheet metal. Not recommended for thick, dense hardwood, reinforced concrete, or hard stone.
• 【Spring-Loaded Pilot Drill】 The hole saw provides precise, deviation-free positioning with bi-metal teeth for smooth, burr-free cutting. After drilling stops, the spring on the drill bit automatically ejects the cut slug.
• 【Progressive Variable Pitch】 Compared to traditional fixed-pitch designs, it offers faster, smoother, and more efficient cutting. The variable pitch distributes cutting force to individual teeth, preventing overload and breakage while increasing durability by 1-2 times.
• 【Universal Hex Shank】 Compatible with mainstream power tools including cordless drills, drill presses, and more, providing a secure, slip-resistant grip. For precision drilling, using a drill press is recommended to ensure perpendicularity.

Parts List: 1 x 20mm Hole Saw 1 x 25mm Hole Saw 1 x 35mm Hole Saw Description: This M42 bi metal hole saw set includes 20/25/35mm (25/32", 1" and 1-3/8") sizes , with precise pilot drill , variable pitch and universal hex shank , suitable for cutting metal , wood , plastic and PVC Key Features: 【Versatile Application】Designed for home DIY , electrical wiring and plumbing installations , balancing cutting efficiency and precision . An essential tool for professionals and DIY enthusiasts . Specification: Material: Drill Bit: High Speed Steel Hole Saw: M42 Bi Metal Size: Hole Saw Diameter: 20mm/0.79", 25mm/0.98", 35mm/1.38" Shank Diameter: 1/4"/6.35mm Note: 1. Not recommended for thick, dense hardwood, reinforced concrete, or hard stone 2. There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color 3. Please allow slight dimension differences due to manual measurement