Bosch T3923SC 2 pc. 4 In. Extension SDS-plus for SPEEDCORE Thin-wall Core Bits

Bosch SDS-plus thin-wall core bits are optimized for drilling with smaller hammers. Core body range is 1 In. up to 4-3/8 In. with a 3 In. usable cutting depth. Extension plus bit beyond 8 In. should not exceed 600 RPM.

• Core bit extension
• 4 In. extension, SDS-plus
• Two pieces
• Screw core bit onto shank