IRWIN INDUSTRIAL TOOL CO - ACH 91138 19/32 HSS Drill Bit

IRWIN INDUSTRIAL TOOL CO - ACH 91138 19/32 HSS Drill Bit

IRWIN Industrial Tool Co - ACH 91138 19/32 Black Oxide HSS Deming Drill Bit is engineered for professional performance in automotive and metalworking applications. The 1/2" shank provides stable chuck grip, while the Black Oxide finish improves durability and reduces friction during drilling. With a 118° point geometry, this bit delivers accurate starts and clean hole edges in a variety of ferrous and non-ferrous materials.

Drills And Accessories

This Deming-style bit is compatible with corded and cordless drills used in automotive power tools sets and general shop kits. The larger shank size enhances bit rigidity for reduced wobble in higher-torque drills, making it a reliable choice for technicians working on vehicle panels, brackets, and chassis components. Use with appropriate drill speeds and cutting lubricant for best life and finish.

Professional Power Tools For Automotive Use

Designed with heavy-duty automotive power tools in mind, the 91138 drill bit balances toughness and precision. The HSS construction stands up to repeated use, and the Black Oxide coating helps resist corrosion and improves chip evacuation. This bit is suited for mechanics, fabricators, and maintenance teams who require consistent hole quality and long tool life in demanding shop environments.

Specifications include a 19/32" cutting diameter, 118° point angle, Deming style body, and a 1/2" shank suitable for larger chucks. The bit’s geometry reduces walking on start and produces smoother holes, minimizing rework. For best results, match cutting speeds to material and maintain proper clamping and coolant usage when drilling thicker stock.

This product complements drills, grinders, and saw accessories in a professional toolkit, offering a focused solution where precision metal drilling is required. Whether outfitting a service bay or restocking a parts kit, the IRWIN 91138 bit provides reliable performance for automotive repair and fabrication tasks. Fast shipping.