VEVOR Concrete Hole Saw Kit, 1-2/11\", 1-3/5\", 2-9/16\", 3-5/32\", 3-15/16\" Drill Bit Set SDS Plus & SDS MAX Shank Wall Hole Cutter with a 4-1/3\" Connecting Rod for Concrete, Cement, Stone Wall, Ma
Thank you for your inquiry. The connecting thread size between the drill bits and the SDS Max rods for this VEVOR concrete hole saw kit is M16 (metric 16mm). This standard thread ensures a secure and stable connection during use.
Yes, it includes a carrying case. The product comes with an aluminum plastic box for storing and carrying the hole saw tools, as mentioned in the product description.
The product description does not mention anything about replaceable pilot bits. However, it states that the kit includes two 4-1/3 inch pilot drill bits.