· Hole Saw Tools in One Kit: Our concrete hole saw kit provides 10PCS, including 1-2/11" to 3-15/16"(30-100 mm) of hole saws, SDS PLUS and SDS MAX shanks, 2 pcs 4-1/3"(110mm) pilot drill bits. Easily store and carry our hole saw tool kit in our zip-up storage case made of aluminum.

· 135° Sharp Pilot Drill Bit: The 135-degree pilot drill bit ensures you open the wall hole in precisely the right place every time. And the multi-edged blades of the hole saw are designed to make your drilling cleaner, faster, and more efficient. The chip removal hole can quickly remove dust, thus preventing clogging.

· Premium Material: Hole saw for masonry is made of high-quality carbon steel. It is sturdy and durable. They are sharp enough to open the wall and wear-resisted. And the connecting rods with 40CR steel are rigid and not easy to break.

· For most Hammer Drills: The shank of the connecting rod adopts SDS PLUS and SDS MAX design, which is compatible with four-hole and five-hole electric rotary hammer drills. They are compatible with hammer drills of Bosch, DeWalt, Hiltex, Makita, Goplus, etc.

· Wide Application: This masonry hole saw can drill through common walls and floors made of brick, concrete, cement, and stone. It makes installing air conditioners, water pipes, water heaters, smoke pipes, sewers, etc. easier.

Specifications
Model: QBKKQ-1
Material: Carbon Steel
Size of Hole Saws: 1-2/11",1-3/5", 2-9/16", 3-5/32", 3-15/16"(30mm, 40mm, 65mm, 80mm, 100mm)
Length of Connecting Rod: 11-13/16" (300mm)
Length of Center Drill Bits: 4-1/3"(110mm)
Angle of Pilot Drill Bit: 135°

Package Content
5 x Hole Saws
2 x Center Drill Bits
1 x SDS MAX Connecting Rod
1 x SDS PLUS Connecting Rod
2 x Screws
1 x Aluminum Plastic Box