About this item
- Material: This concrete hole saw kits are made of high quality tungsten carbide steel, One -in -one forged type, high hardness, high density, good toughness. 135 degree tungsten steel cutter head, very sharp, ensure high work efficiency.
- SDS-plus shank: Designed of 8-7/10 IN (220mm) SDS-plus shank for these concrete hole saw bits, and it fit for most of electric hammer, easy to installation.
- Precision locating hole: Come with 2pcs positioning central drill bits, which installed in SDS-plus shank, and it is in the middle of the hole saw, very easy to locate the hole you want to open accurately. Attention: After complete the hole positioning, please take out the central positioning drill bit, then continue working, it can avoid stuttering and improve work efficiency.
- Widely applicable: These masonry hole saw bits are suitable for working on brick, masonry, concrete, cement and stone, etc. And it can be widely used for opening hole on wall, such as install air-conditioning, open drains hole, etc.
- Package List: Total come with 2pcs hole saw bits: 1-3/5, 2-3/4 IN (40MM, 70MM). 1pcs SDS-plus Shank, 8-7/10 IN (220mm). 2pcs central positioning drill bits, 110mm (4-1/3”).