[Towertalk] SDS vs SDS plus vs SDS MAX vs Spline Hammerdrill

[k3fy@arrl.net]

SDS and SDS plus are interchangeable.

However,  SDS plus drill bits have four large drive/engagement grooves =
and when used in a SDS plus hammerdrill a stronger connection capable of =
more rotational torque results.  (SDS has only two of the large grooves)

SDS Max is not interchangeable with either of above but is even heavier =
duty.

Spline Drive is not interchangeable with any above and is also heavy =
duty.

Mark Holzbach  K3FY



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