What Is a Ratcheting Drill

Definition of ratchet drill : a hand drill in which the drill holder is revolved intermittently by a lever through a ratchet wheel and pawl.

Are keyless chucks any good?

Most experts and machinists would agree that keyed chucks are more accurate related to overall runout with some models as little as . 0006 inch. The jobs where the holes have no specific tolerance and are used for clearance allows the use of a keyless drill chuck for quick changes on manual milling machines.

What is a 2 sleeve chuck?

2) A double-sleeve keyless chuck You need two hands to operate a double-sleeve keyless chuck. You firmly grasp one part of the chuck with one hand, while turning the other part with the other to loosen or tighten it.