A Jobber Length Drill Bit HSS Black Oxide D/ANA (12 / Pkg.) Bargain

12-pack set of A HSS Black Oxide Jobber Length Drill Bits, D/AN Series. Designed for general metal drilling tasks with durable HSS construction and a black oxide finish that enhances wear resistance.

Specs

Quantity: 12 pieces

Material: High-Speed Steel (HSS)

Finish: Black oxide

Length: Jobber length

Series: D/AN

Features

Bulk 12-piece package provides tooling availability for ongoing projects and maintenance tasks.

HSS construction offers reliable performance when drilling through steel, cast iron, and aluminum common in machine shops and fabrication tasks.

Black oxide coating reduces friction and provides additional wear resistance in typical workshop environments.

Jobber length geometry balances reach and rigidity, helping with through-holes and deeper drilling tasks without excessive deflection.

Series D/AN designation helps you match this set to existing inventory or specific setup requirements.

Practical tips: use cutting oil or light lubrication when drilling steel; clamp work securely and start with a pilot hole if necessary; maintain steady feed to maximize bit life.

Physical

Finish: Black oxide

Material: High-Speed Steel (HSS)

Length: Jobber length

Packaging: 12-piece pack

Designation: D/AN Series