Extension Spindle SPV 50-1/8 S1/4 
 
Technical information
Max. RPM
44000 RPM
Shank holder ø S [Inch]
1/4
Tool mounting [Inch]
1/8
Overall length [inch]
3,07
Length mounting pin L2 [Inch]
1,18
Max. spindle dia. [Inch]
0,37
Incl. collet dia. [Inch]
1/8
Collet group
2
Weight [kg]
0.028
Material number
89912000
 
Description
With drive spindle extensions, shanks of grinding and milling tools can be extended. They allow access to difficult-to-reach areas. The extensions are clamped into the collet of the machine (air- or electric-powered) or into the flexible shaft handpiece.
Drive spindle extensions are a cost effective alternative to special made-to-order burrs and mounted points with long shanks.
 
Safety notes:
Caution! When using spindle extensions, please observe the valid safety regulations and the accident prevention regulations.
When working with long shank lengths, it is vital that the tool is inserted into the workpiece (e.g. bores, pipes, ducts or keyways) before the drive system is switched on. The extension must not run freely with the tool outside the workpiece.
If this rule is not observed, there is an increased risk of accidents! In unfavourable conditions, the extension with the tool clamped in it may buckle. The extensions are only intended for manual use in connection with suitable air grinders, electric grinders or flexible shaft handpieces for tools with standard shanks. The extension and a tool permitted for use at the appropriate rotational speed are clamped into an impact-free collet. Do not clamp on the transition radius.
Clamping of a second extension or of tools with excessively long shanks is not permitted.
 
Classification
profi class 5.0
21021101
eclass 8.1
21022190
eclass 7.0
21022190
eclass 4.1
21021101