100% brand new and high quality.

Eliminates need to change collets when swapping between bit sizes.
Twist-to-tighten/loosen with heavily-knurled grip means no wrench or key needed.
Heat treated & tempered high-carbon steel for durability; rust-resistant black oxide finish.
Corded Rotary Tools without changing collets.
It accepts all accessory bits with 1/32 and 1/8 shanks.
Specification: 4 types for choice. Please check the size photo for reference.

Structure Type: Long Tail, Short Tail

Package Included:1Pcs drill bit chuck