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Vibration at high speeds is eliminated by the slot-free design of MEGA E Nuts, which offers superior balance and concentricity.

ER nuts are basic nuts with surface treatment for friction reduction. They have slots on the outside diameter and use a spanner wrench for nut tightening.

High accuracy and clamping force are provided with thrust ball bearings. MEGA ER Nut is ideal for solid carbide drills and reamers.

MEGA Micro Nut is a high-precision slot-free nut that effectively prevents vibration and coolant scattering.

NEW BABY NUT has a 45˚ trapezoidal thread that offers less friction and better alignment to the center when clamping a collet.

The MEGA Perfect Seal Nut features a unique design to increase sealing performance with higher coolant pressure.

MEGA ER Solid Nut is a high-performance nut with surface treatment for friction reduction.

MEGA MICRO COOLANT NUT is exclusively for MEGA MICRO CHUCK 6S and provides a more efficient coolant supply for micro-cutting tools.

MEGA NEW BABY NUT is a high-precision slot-free nut that effectively prevents vibration and coolant scattering.

MEGA Micro Seal Nut is sealed for coolant-through cutting tools to be used with MEGA Micro Chucks.

The unique design of Baby Perfect Seal nuts increases sealing performance with higher coolant pressure to create a perfect seal.

MEGA ER Perfect Seal Nut is a sealed collet nut for coolant-through tools to be used with MEGA ER Collet chucks.

MEGA E Perfect Seal Nuts are designed for use with MEGA E Chucks. Their unique design increases sealing performance with higher coolant pressure.

As one of the smallest round chucks in the UNILOCK family, the ASM 90A specializes in small jobs without creating obstructions.

Our 138 mm round chucks easily mount in custom fixture designs, and their versatility makes them our best seller.