An adapter is required to use the SDS-Plus bit on the SDS-Max electric hammerAdapter/connect SDS-Max to; SDS-Plus - small size, easy to store. transportUnit weight: 521 grams. Material: chrome vanadium steel/CR-V/. silverSDS-Max to SDS-Plus heat resistant tool holder adapter corrosion. Long life - very strong, solid and efficient. The adapter is ideal for masonry and construction workConverters/Accessories-Designed for quick work with drilling and assembly tools of various sizes. Self-locking, productivity increased by 30% when changing forests abrasion Applications: construction, concrete slabs, carpentry, interior and exterior fittings, renovation projects, masonry, domestic and industrial applications Uses: recommended; on jackhammers Use adapter / jackhammer