Abraboro HSS-R Twist Drill Bit DIN 338, cobalt-free high-speed steel, size A.3.1/65/36, pack of 10

Abraboro HSS-R Twist Drill Bit DIN 338, size A.3.1/65/36, is a high-speed steel (HSS-R) drill designed to meet the DIN 338 dimensional and point geometry standard. Supplied as a pack of 10, this cobalt-free HSS drill bit is manufactured for general metalworking applications and is suited to use in both hand-held drills and drill presses. The geometry follows the DIN 338 specification to provide reliable centring, chip evacuation and manufacturable tolerances for routine drilling tasks in workshop and industrial settings.

Advantages

The drill bit is made from high-speed steel (HSS-R) without cobalt, offering a balance of toughness and hardness appropriate for drilling common ferrous and non‑ferrous metals. DIN 338 geometry ensures consistent point angle and flute design for predictable cutting action and improved hole accuracy. Supplied in a pack of 10, it provides cost-effective replacement and consistent performance across repeated jobs. The product is compatible with standard drill chucks and typical workshop equipment.

Suitable for

• Drilling mild and medium carbon steels
• Working with non‑ferrous metals such as aluminium and brass
• General workshop and maintenance drilling tasks
• Use in hand drills and stationary drill presses

Key specifications

• Material: high-speed steel (HSS-R), cobalt-free
• Standard: DIN 338 geometry
• Size designation: A.3.1/65/36
• Pack quantity: 10 pieces
• Point form and flute design suitable for general-purpose metal drilling

How to use

Clamp the workpiece securely and select an appropriate drilling speed for the material being machined. Fit the twist drill into a correctly tightened chuck and ensure the bit is perpendicular to the work surface for accurate holes. Apply steady feed pressure and use cutting fluid or coolant when drilling harder steels or when prolonged drilling generates elevated temperatures. Withdraw the bit periodically to clear chips and reduce heat build-up.

Usage recommendations

For best results, start with a pilot hole for larger diameters, match drill speed and feed to the material, and use suitable lubrication when working with stainless or hardened steels. Store the drill bits in a dry place and inspect cutting edges before use to ensure clean, sharp tips for consistent performance.