Dormer A-191 No.419 HSS Jobber Drill Bit Set (19pcs, 1mm – 10mm)

HIGHLIGHTS:

We sell only Original Dormer cutting tools — trusted worldwide for their precision, durability, and consistent manufacturing quality. The Dormer A-191 No.419 HSS Jobber Drill Bit Set contains 19 high-speed steel drill bits, ranging in size from 1mm to 10mm in 0.5mm increments, providing a comprehensive selection for general purpose drilling applications.

Each drill bit in the set features A-100 HSS Jobber Drills with a steam oxide finish and a 118° conventional point angle, ideal for general-purpose applications. High-speed steel (HSS) provides the hardness needed for wear resistance, while the steam oxide finish acts as a lubricant — reducing wear while promoting chip and coolant flow during drilling. These jobber length drill bits have a drilling depth of up to four times their diameter (4xD), and the straight shank accommodates most standard drill chucks.

The set is supplied in a durable plastic case with each size embossed for easy identification, providing convenient storage and easy access to each drill bit. This makes it ideal for both professional tradespeople and DIY enthusiasts who value organization and efficiency in their workspace.

Precision Dormer manufactures cutting tools under the brands Precision Twist, Dormer, and Union Butterfield. The company, headquartered in Crystal Lake, IL, meets International Organization for Standardization (ISO) standards 9001 and 14000.

FEATURES:

• Original Dormer Product – Guaranteed genuine Dormer tool, manufactured to the brand's exacting quality and precision standards.
• High-Speed Steel (HSS) Construction – Provides hardness for wear resistance across a range of drilling applications.
• Steam Oxide Finish – Reduces bit wear while promoting chip and coolant flow during drilling.
• 118° Conventional Point Angle – Standard general-purpose point for everyday drilling tasks.
• 19-Piece Set, 1mm – 10mm in 0.5mm Increments – Comprehensive metric size range for general-purpose drilling needs.
• Jobber Length (4xD Cutting Depth) – Drilling depth up to four times the bit diameter.
• Straight Shank – Accommodates most standard drill chucks.
• Embossed Plastic Case – Each size embossed for ease of identification and organized storage.

APPLICATIONS:

• General purpose drilling in steel, cast iron, and other ferrous materials
• Metalworking, fabrication, and machine shop work
• Workshop and maintenance drilling applications
• General DIY and professional drilling tasks

WHAT'S IN THE BOX:

• 1 x Dormer A-191 No.419 High Speed Steel Drill Set in Case (19 pcs)