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Question 16 / 20 1 Minute Reveal 0%
16

What specific chuck mechanism is standard on heavy-duty rotary hammer drills to keep concrete bits from slipping under hard impacts?

What specific chuck mechanism is standard on heavy-duty rotary hammer drills to keep concrete bits from slipping under hard impacts?

Explanation

SDS (Special Direct System) chucks feature keyless grooved slots. Rather than relying on simple clamp friction, the SDS bit locks deep inside matching tracks. This lets it hammer back and forth freely without slipping out of the chuck.

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