3-pack! 1-3/8-SP Super Puls Quality Wet/Dry Diamond Core Bits 

• For wet/dry drilling concrete and asphalt
• Laser wielded, segment height 0.400",  17" length.
• Bits 5/8” to 1-1/2 have 5/8”-11 thread
• Bits1-3/4”and larger have 1-1/4-7 thread.