Drill Bit Abraboro Morse Taper HSS DIN 345 21.5 mm x 248 mm x 150 mm [MK2]

High-speed steel (HSS) drill bit Abraboro with a Morse taper shank, designed according to DIN 345. This tool has a 21.5 mm cutting diameter, an overall length of 248 mm and a flute length of 150 mm, and is made for mounting in MK2 (Morse taper 2) spindles. The Abraboro HSS construction ensures durability and consistent cutting performance when drilling steel and other common metals on lathes, drill presses and machine tools that accept Morse taper tooling.

Advantages

The solid HSS material provides good heat resistance and wear characteristics for general-purpose metalworking. Conformance to DIN 345 ensures standardized geometry and compatibility with tools and holders that follow the same standard. The MK2 taper allows quick and secure mounting in machines with Morse taper sockets, while the flute length and overall geometry balance chip evacuation and rigidity for improved hole quality.

Suitable for

• Drilling mild steel, alloy steel and common ferrous and non-ferrous metals
• Use in lathes with Morse taper toolholders
• Drill presses and floor machines with Morse taper spindle
• General workshop and maintenance metal drilling tasks

Key specifications

• Material: High-speed steel (HSS)
• Standard: DIN 345 compliant geometry
• Cutting diameter: 21.5 mm
• Overall length: 248 mm
• Flute length: 150 mm
• Shank type: Morse taper suitable for MK2 sockets

How to use

Mount the drill bit into the MK2 Morse taper socket of the machine, ensuring clean, undamaged taper surfaces for a secure fit. Use appropriate clamping and follow the machine manufacturer's guidance for collet or taper seating. Select cutting speed and feed appropriate for the material being drilled; use cutting fluid for improved tool life and hole finish when working with steel. Start at low speed to establish the hole, then increase to the recommended RPM for a 21.5 mm HSS drill in the work material. Periodically withdraw the bit to clear chips if drilling deep holes or when chip packing occurs.

Usage recommendations

Use cutting fluid for ferrous materials, ensure the taper is clean before mounting, and match spindle speed and feed to material hardness to extend tool life and maintain hole accuracy.