Questions and Answers for Bosch 2-5/8 in. Carbide SDS-Max Rotary Hammer Core Bit for Masonry and Concrete Drilling (2-Piece)

A:  Hi there! When you say 2 piece core bit, it means it is a set of core drill and the shank (pilot bit). For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7A-7P CST.

A:  Hi there! The HC7503 doesn’t have an Allen screw. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7A-7P CST.

A:  Not at a Home depot rental center to my knowledge, perhaps for some other rental rental center. I know most rental centers only sell blades/ bits since wear can be beyond renting again, so only sell them.

A:  Yes. It will bore through CMU so it should do what you need. Water is optional to keep dust down but not needed for cooling of the bit.

A:  Thank you for your question. The HC7503 core bit is designed for drilling into concrete and masonry so it should work for your application. Water is not needed when using these bits.

A:  Thank you for your question. The HC7503 core bit is designed for use only in an SDS Max rotary hammer. The bit will not work with a regular drill chuck.

A:  This can be used.

A:  No

A:  Thank you for your question. The part number for the centering bit is HC88, this is a 1/8" bit.

A:  The HC7503 includes the core cutter and pilot bit. The shank is sold separately, we offer two lengths: CAM008 is 8 inches and CAM018 is 18 inches. We offer the following core bit sizes: 1-3/4", 2", 2-1/2", 3", 3-1/2", 4", 5" and 6". The part number for the 3-1/2" bit is HC7505

A:  Thank you for your question. The Bosch HC7503 is the actual core bit with centering bit only. You would also need the SDS Max core bit shank (sold separately). We offer two sizes. #CAM008 is 8" long and #CAM018 is 18" long.

A:  I do core drills on sidewalks will this make a 2 1/2 inch hole