The 3.2mm Cobalt Stub Drill to DIN 1897 is a short-series high-speed steel drill intended for accurate general-purpose drilling in metal. Its primary use is through- and spot-drilling where rigidity and minimal deflection are required, making it ideal for producing small-diameter holes in steels, stainless steels and other hardened or heat-resistant alloys where conventional HSS drills would wear prematurely.

Manufactured from HSS-Co M35 (HSS with approximately 5% cobalt), this DIN 1897 stub drill retains hardness at elevated cutting temperatures, improving wear resistance and tool life when working with tougher materials. The drill is ground to a 118° point angle and supplied with a bright ground finish; dimensional form and length conform to the DIN 1897 short-series specification for stub drills. The cylindrical shank is suitable for clamping in standard three-jaw chucks, drill presses and most compact CNC tool holders.

Typical applications include drilling mild and alloy steels, stainless steels (AISI 304/316), castings and non-ferrous metals in workshops and production environments. Industries that commonly use this style of drill are automotive, aerospace sub‑component manufacture, tooling and jig making, maintenance and repair operations, and general engineering where small, accurate holes are required in difficult-to-machine materials.

Key benefits of the 3.2mm cobalt stub drill include improved hot hardness and edge retention compared with plain HSS, reduced tendency to work‑harden stainless steel and greater resistance to flank wear under intermittent cutting conditions. The short length specified by DIN 1897 reduces chatter and bending, increasing positional accuracy and extending life. For enhanced corrosion resistance choose drills with a black oxide or TiN coating; the bright finish supplied benefits re-sharpening and visual inspection. The drill is compatible with common cutting fluids and standard drill-holding equipment.

Duchy Fasteners stocks the 3.2mm CSD03.2 cobalt stub drill in single pieces and multi-packs for production use. Please contact us for available pack sizes and bulk supply options.