Howdy, I recently picked up a set of #2 profiled Tower jaws for my Oneway Talon chuck. Clamp-down/compression grab is great. I experimented on one chunk of wood in expansion mode with poor results, but I am looking for confirmation on how I blew it.
School me. My recess was a larger diameter (yikes, almost 3/8" larger dia.) than the near-round diameter as I show in the photo, and the mismatched diameter resulted in small contact patches with the jaw serrations, so I easily pried the piece of wood off the chuck with modest cutting contact. The very small amount of serrations on the outer jaw surface had little contace on the wood. (I get more fudge-factor in this regard with the dovetail outer profile on my Vicmarc's Shark jaws, so I guess I wasn't considering that.)
Tower jaw users, is that where I blew it? I need to keep that recess as small as possible to allow the closed-down jaws to make as much circumference expansion contact as possible inside the recess, correct?
Fully closed, my set of jaws measures a strong 1-15/16" outside dia. I'm thinking I should not exceed a 2" diameter recess. Maybe with a half degree of dovetail for extra pull-out resistance? Thank you for your experience with these jaws.
School me. My recess was a larger diameter (yikes, almost 3/8" larger dia.) than the near-round diameter as I show in the photo, and the mismatched diameter resulted in small contact patches with the jaw serrations, so I easily pried the piece of wood off the chuck with modest cutting contact. The very small amount of serrations on the outer jaw surface had little contace on the wood. (I get more fudge-factor in this regard with the dovetail outer profile on my Vicmarc's Shark jaws, so I guess I wasn't considering that.)
Tower jaw users, is that where I blew it? I need to keep that recess as small as possible to allow the closed-down jaws to make as much circumference expansion contact as possible inside the recess, correct?
Fully closed, my set of jaws measures a strong 1-15/16" outside dia. I'm thinking I should not exceed a 2" diameter recess. Maybe with a half degree of dovetail for extra pull-out resistance? Thank you for your experience with these jaws.