Lock-N-Load Quick-Change extension bars let you swap blades fast and easy with just one hand. The tip releases from the holder when you pull up the quick-lock on the holder. The ball-bearing hex jaw keeps the blade firmly in place. The housing and body are made of carbon steel, which boosts durability and extends the service life.

Compatibility:

Step drills 3-4 mm
Holesaw arbor 9.5 mm
Blue Groove Power blades 16 - 18 mm
Quick-lock
Magnet
Carbon steel