7-piece hole saw set and 3-piece electric hammer drill bits. Cutting kit for concrete, brick and cement walls, 30–110mm.

Features:

1. Metal Materials: This concrete hole saw set is made of tungsten steel and YG8C alloy, offering high hardness, rust resistance, and durability. The hole saws are equipped with ventilation holes, facilitating easy dust removal and effectively improving work efficiency.
2. Applications: This hole saw set is suitable for a variety of materials, such as hollow brick, cement wall, concrete wall, and red brick. It is suitable for creating openings for installing air conditioners, reach hoods, water lines, water heaters, conduit pipes, sewers, and more.
3. Rapid chip removal: The sharp three-tooth design and chip removal holes allow you to quickly clean internal and external debris during drilling, ensuring clean, fast, and efficient hole drilling.
4. Efficient drilling: The hole saw features a sharp alloy head with a precise 135° ground angle.
5. Specifications: This kit includes 7 hole saws of different sizes, as well as 300mm and 110mm connecting rods, which can be installed on various electric hammers. It also comes with a portable case for convenient storage and transport.

Specifications:

Item Type: Concrete Hole Saw Kit
Material: Tungsten Steel Body, YG8C Carbide Head
Application: Concrete wall, mixed brick wall, brick wall drilling
Hole Drilling Diameter: 30mm (1-3/16 inch), 40mm (1-9/16 inch), 50mm (2 inch), 65mm (2-9/16 inch), 80mm (3-1/8 inch), 100mm (3-15/16 inch), 110mm (4-5/16 inches)
Hole Drilling Depth: Approx. 50mm / 2 inches
Hole Saw Height: Approx. 70 mm / 2.8 inches
Shank Specification:
Long shank: 300 mm (11-13/16 inches) long, excluding center drill, 2 pits, 2 slotted cups, 5 shank pits
Short shank: 110 mm (3-15/16 inches) long, excluding center drill, 2 pits, 2 slotted stamps
Center drill length: approx. 109 mm / 4.3 inches

Package List:

7 x Hole Saws
2 x 300 mm Connecting Rods
1 x 110 mm Connecting Rod
3 x Center Drill Bits
3 x Hex Keys
3 x External Hex Screws
3 x Internal Hex Screws
1 x Storage Box

Note:

1. Equipped with hole saw drill bits, suitable for all major 2-hole drills. Adding coolant during continuous high-speed drilling can prevent the drill bit from burning out or breaking, extending the product's lifespan. 2. There may be a slight size error.