Specification:
Hole saw sizes: 5" hole saw (125mm), 4" (100mm), 3.15" (80mm), 2.56" (65mm), 1.6" (40mm)
center drill bit 4.3" (110mm).

Feature:
1.  【HIGH QUALITY】- 6PCS concrete hole saw kit is made of tungsten steel and carbide, durable, and works under rough conditions.
2.  【UNIQUE BLADE DESIGN】- Concrete SDS max hammer drill bits blade is made of raw materials, thicker and sharper than ordinary blades.   They can easily penetrate steel bars up to 6mm.
3.  【WIDE APPLICATION】- The masonry wall opening drill bits kit is perfectly used for open self-leveling concrete, hollow brick, cement wall, concrete wall, red brick, etc.   Works well when installing air conditioners, water pipes, water heaters, fume pipes, sewers, etc.   Left-handed available drill bit.
4.  【SDS PLUS】- The hammer drill set is combined with hole saws that are designed with SDS plus coring bits, which is perfectly matched with the round shank four-pit electric impact drill.

Package included:
5 * hole opener
1 * center drill bit