BS ISO 5415:2007

This standard BS ISO 5415:2007 Reduction sleeves with 7/24 external and Morse internal taper and incorporated screw is classified in these ICS categories:

• 25.060.20 Dividing and tool-workpiece holding devices

This International Standard specifies the dimensions of reduction sleeves with 7/24 external taper No. 30-40-45-50 and 60 and Morse internal taper No. 1 to 6 (Morse taper No. 4, 5 and 6 being either with positive drive, see Figure 2, or without positive drive, see Figure 1).

These sleeves permit driving of tools with Morse taper shanks with tapped holes with the aid of an internal screw. The form of this screw and its fixation in the sleeve are left to the manufacturer's discretion.

7/24 tapers are in accordance with ISO 297. Morse tapers are in accordance with ISO 296 and ISO 5413.