Dormer HSS Jobber Drill Bits (Metric) ( A-100 )

HIGHLIGHTS:

We sell only Original Dormer cutting tools — trusted worldwide for their precision, durability, and consistent manufacturing quality. The Dormer HSS Jobber Drill Bit (A-100) — Metric Sizes is designed for precision drilling, offering durability and efficiency across a wide range of general engineering applications. It is an HSS jobber drill for general machining applications up to 4x diameter.

The A-100 jobber drill bits are steam tempered and bright below 1.0mm, with a split point from 2.0mm and above. They conform to DIN 338, feature a right-hand spiral, and have a point angle of 118°. They are suitable for both hand and machine use and are ideal for drilling into steels, cast steel, grey cast iron, malleable cast iron, nickel-brass, aluminium alloy, and graphite. Look for the patented silver ring on all sizes from 1/4 inch (above 6.00mm), giving confidence this is a genuine Dormer drill while also making it easy to find and read the drill size.

A-100 drill bits are ideal for general machining applications in almost all material types, available here in metric sizes from 1.0mm to 20.0mm. The clean, accurate holes produced by the A-100 series make it a dependable choice for machinists, fabricators, and workshop users across a broad range of drilling tasks.

FEATURES:

• Original Dormer Product – Guaranteed genuine Dormer tool, manufactured to the brand's exacting quality and precision standards.
• HSS Construction – High speed steel material delivers durability and efficiency for precision drilling.
• 118° Point Angle – Standard general-purpose point angle for everyday drilling applications.
• Right-Hand Spiral – Consistent, reliable cutting action during drilling operations.
• Split Point Design (2.0mm and Above) – Reduces walking and improves self-centering accuracy when starting a hole.
• Steam Tempered Finish – Improves wear resistance and durability of the drill bit.
• Silver Identification Ring (1/4" / 6mm and Above) – Makes it easy to identify genuine Dormer drills and read the drill size at a glance.
• Manufactured to DIN 338 Standard – Meets recognized industry dimensional standards for jobber drills.
• Suitable for Hand and Machine Use – Versatile for use in both conventional and machine-based drilling setups.
• Extensive Metric Size Range – Available from 1.0mm to 20.0mm to cover virtually all hole-making needs.

APPLICATIONS:

• General purpose drilling in steel and cast steel
• Drilling grey cast iron and malleable cast iron
• Drilling nickel-brass, aluminium alloy, and graphite
• General engineering, metalworking, and fabrication applications
• Workshop, maintenance, and production drilling work