Shears T6 bits but screw undamaged

R

RetMilRob

Joined
Jan 24, 2015
Messages
5
I’m copper modifying a Rat1 (scales, screws, pocket clip) took off the g10 no prob, cleaned screws of loctite, installed flytanium copper scales without loctite and adjusted to center blade. My copper plated screws came in and I attempted to remove the factory t6 scale screws and promptly sheared the bit head right off No damage to screw. Level and clamp knife in bench, seat my good torx bits (bondhus) in the head and slowly evenly turn, sheared the tip of bit off in the screw and screw head still fine. Tightened the screws on ither side to reduce pressure and same result. Anyone with any suggestions I’d be grateful keep in mind these screws will be discarded so damage isn’t an issue.
 
Sounds like it might be time to get an easy out? I've also used hex wrenches to turn torx screws... Mind you this is on chainsaws, but perhaps if you have a decent set kicking around they'll be harder than your run of the mill torx bit.
 
Better bits maybe? But consider yourself lucky. I always want the bit to break before rounding out the screw head. Also try a little heat, maybe with a soldering iron. Might help ya loosen it up. Then, tap the bit (like into the screw) as you apply pressure. Sometimes the little shock will help break it free.
 
I have rounded Wiha T6 bits, too! But, the power torx bits that I use have never failed me. All Felo, Wiha, and Wera power torx bits. I don’t know what they are made of but they are designed to be used in a power driver.

One thing that you can do is insert the bit into the screw head and smack the bit with a hammer a few times. It breaks the seal on the loctite. I know that you cleaned the screws, but I am betting that there is residue in the holes.
 
Daniel said:
I have rounded Wiha T6 bits, too! But, the power torx bits that I use have never failed me. All Felo, Wiha, and Wera power torx bits. I don’t know what they are made of but they are designed to be used in a power driver.

One thing that you can do is insert the bit into the screw head and smack the bit with a hammer a few times. It breaks the seal on the loctite. I know that you cleaned the screws, but I am betting that there is residue in the holes.
Click to expand...
YES! success. Daniel that’s exactly what worked. I clamped my knife into my bench, struck one of the sheared bits into the screw (So not to damage a good one) used my McMaster and CARR impact bit in my impact driver and pulled the screw. It had loctite on the threads from the liner. There were 3 other screws with the same issue on the other scale.
 
You can always dunk the knife (in part or whole) in some hot water for several minutes. That usually will soften the loctite enough for it to release. Glad the impact worked though.
 
You must log in or register to reply here.
Back
Top