MAKITA, SDS-Plus For Chuck, 1/2 in Keyless Converts to Chuck, Chuck Adapter - 61HJ31|199139-5 - Grainger
Makita Adapter - Spline to SDS-PLUS T-01367/B-64163 - USA Granite Tools
SDS Max to SDS Plus Adaptor Chuck Drill Converter Shank Quick Tools for Bosch Makita and Other Rotary and Demolition Hammers: Amazon.com: Tools & Home Improvement
SDS Max to SDS Plus Adaptor Chuck Drill Converter Shank Quick Tools for Bosch Makita and Other Rotary and Demolition Hammers: Amazon.com: Tools & Home Improvement