Bosch T3921SC 4-3/8'' Speedcore Core Bit
- For use with rotary hammers, as well as corded and cordless hammer drills
- Offers 40% greater drilling effeciency than past core bit design
- Allows for through-hole drilling with larger and cleaner holes
- Features a wave design that delivers a more effecient energy transfer
- Diameter: 4-3/8"
- See our Bosch SPEEDCORE Core Bits "ALL"