Dormer A190 No.20 Imperial HSS Drill Set of 15 1/16 - 1/2in x 32nds | A19020

Dormer A19020 A190 No.20 Imperial HSS Drill Set (15pc, 1/16–1/2in in 1/32 increments)

Dormer A19020 is an imperial HSS drill bit set designed for consistent holemaking across a practical range of fractional sizes, making it a strong choice for general workshop and maintenance drilling in metal and plastics.

This Dormer A190 No.20 set includes 15 jobber-style twist drills from 1/16in up to 1/2in, stepping by 1/32in to help you select the closest size without relying on metric conversions. Ideal for engineers, fitters and fabricators who frequently work to imperial drawings or existing fastener sizes.

Key Features

• Imperial size coverage: Includes common fractional drill sizes to suit imperial hole requirements without compromise.
• 1/32in increments: Close stepping helps you match hole size more accurately for bolts, rivets and clearance holes.
• HSS twist drills: Suitable for general-purpose drilling where a versatile, workshop-ready drill bit is required.
• 15-piece assortment: A balanced range for maintenance, fabrication and general engineering tasks.
• Set format: Keeps sizes together for faster selection and tidier storage on the bench or in the tool kit.

Specifications at a glance

Suitable applications

• General drilling in metal, workshop fabrication and maintenance tasks.
• Jobs requiring imperial fractional drill sizes (e.g. working to imperial drawings or legacy hardware).
• Creating pilot holes and clearance holes across a broad imperial size range.