655A Ripper Cutters Threaded Shank

Parallel shank with thread*                                 M35 +5% Cobalt**                            BSS122 Part 4
Threaded shank                                                  Right hand spiral                              Right hand cutting
Shank tolerance h8                                             20TPI Whit Form Thread                  Teeth end cutting, but not to centre

*shanks are designed to fit plain collets, as thread crests are below shank diameter, as well as Clarkson and similar threaded collets
A metric standard, DIN1835 Type D, has been used to describe the shanks.

**stocks remain of tools in M42 8% Cobalt material. Move to M35 was made because it resists chipping better in –NR ops.