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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.

MEGA ER Nut

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

MEGA ER COLLET

MEGA ER collets are inspected twice (0º and 180º) at 4 times diameter to guarantee the runout accuracy.

MEGA ER Solid Nut

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

Jun 2020

What’s the Difference Between ER Nuts?

When it comes to dialing in an ER system’s performance to match a specific application’s requirements or long life, there are three components to consider: the collet, the body of the holder and the nut.

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Tool Holders

MEGA ER GRIP

MEGA ER GRIP Collet Chuck has a high-precision collet, nut, and body; outperforming standard ER systems, improving machining capability and reducing cost.

MEGA ER Perfect Seal Nut

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

Nov 2010

BIG DAISHOWA Introduces Premium ER Collet Chuck System

BIG DAISHOWA has introduced MEGA ER Grip, a new premium ER collet chuck system featuring the best runout accuracy in the industry: .00012" (3 microns) at 5xD.

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Announcements

Tool Holders

May 2017

BIG DAISHOWA Adds Options to Mega ER Grip Collet Chuck Offering

BIG DAISHOWA’s Mega ER Grip was designed to outperform all standard ER systems in the four most critical areas of tool holder performance: clamping force, concentricity, rigidity and balance at high spindle speeds.

Categories

Tool Holders

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Manual - MEGA ER Grip

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Aug 2013