CNC Side Lock Holder

Precision-ground to ISO-AT3 taper tolerances with runout typically under 0.005 mm—our CNC Side-Lock Holders deliver dependable clamping strength and stability for milling cutters in demanding side-drive applications. Perfect for slotting, face milling, and profile work where tool rigidity is critical.

Why Choose Our CNC Side-Lock Holders?

  • Solid Cutter Grip. Side-lock systems use hardened set screws for positive cutter retention, minimizing slippage under heavy radial and axial loads.
  • Precise Alignment. Ground to tight AT3 taper standards, they ensure optimal concentricity and consistent tool position in the spindle.
  • Wide Interface Range. Compatible with BT40/50, SK40/50, DIN2080‑40/50, NT40/50, and CAT40/50 interfaces—select from EM mount sizes to fit cutters with 8–25 mm shanks.
  • Ideal for Heavy Milling. Designed to resist vibration and deflection in demanding applications, offering greater rigidity than IK hollow-shaft holders.