Long neck flange is also called long diameter flange, belongs to the American standard flange standard system, is a form of ANSI flange, is a neck butt welding flange expansion form.
Lntool Tools Impact Socket is engineered use for impact drivers. It has a 6-point opening that snugly fits the hex shape of fastener heads,To apply maximum torque without slipping. To prevent round-off under stress, it grips the flat sides of fastener hea