There are two types of bt30 high speed toolholder commonly used,
BT30sk high speed toolholder and BT30GER high speed toolholder. Material:
Titanium alloy 20CrMnTi, wear-resistant and durable. Toolholder hardness 58-60 degrees.
bt30 high speed toolholder features:Small wind resistance, preset dynamic balance,
high precision, suitable for high speed machining. High speed of 25000-40000 rpm,
special for small CNC machining center and milling machine.

BT30sk high speed toolholder 6 models, BT30GER high speed toolholder 14 models,
bt30 high speed toolholder series model specification size table: