BT30 JT6 Adaptor Holder for JT6 Arbour 3X12 MM SCREW If the total length increases

If the total length increases

Single End cylendrical 1/2"x1/2" and 1/2" x

They are hardened 45-50 HRC to not wear out

Led will lighten when it will touch the surface

BT30 JT6 Adaptor Holder for JT6 Arbour 3X12 MM SCREW If the total length increasesBT30 JT6 Adaptor Holder for JT6 Arbour BT30 JT6 holders are mainly used to hold the JT6 Female Taper. This holder has a JT6 Male taper, similar to drill chucks with an internal JT6 taper, so that it can hold the tool securely and rigidly. Made from alloy steel hardened to 54 56rcBalanced to G6. 3 at 12,000 rpmsConcentricity is less than . 005 micron up to 100 Length and 0. 012 up to 200 Length. All critical tool holder surfaces are precision