Tool Talk

What's-It Forum => What's-It Forum => Topic started by: Sudsy on May 02, 2024, 08:40:34 AM

Title: What the heck are these ?
Post by: Sudsy on May 02, 2024, 08:40:34 AM

Various sizes
Like hand drills with post guides
Maybe for flattening the bottom of a countersink hole ??

(https://www.stripersonline.com/surftalk/uploads/monthly_2023_12/20231204_225015.jpg.a45bb0714d9a3f4a8026f5885d3676c0.jpg)
(https://www.stripersonline.com/surftalk/uploads/monthly_2023_12/20231204_2250241.jpg.79e1c320b0e2479ce85ec132b3c4f92e.jpg)

Title: Re: What the heck are these ?
Post by: Bill Houghton on May 02, 2024, 12:10:47 PM

They're counterbores - think "countersink," but with flat bottoms to the hole.  I've never seen a hand-powered one, though; must be intended for pretty soft wood or other soft material.

Or they're something else entirely...

Title: Re: What the heck are these ?
Post by: Yadda on May 02, 2024, 02:44:13 PM

Maybe a specialty security driver set?

Title: Re: What the heck are these ?
Post by: Sudsy on May 03, 2024, 07:32:00 AM

Quote from: Bill Houghton on May 02, 2024, 12:10:47 PM

must be intended for pretty soft wood or other soft material.

You can see where they've been hardened at the tips. I doubt you'd do that for soft woods

Title: Re: What the heck are these ?
Post by: Bill Houghton on May 03, 2024, 04:53:09 PM

Looking at them again, I'm mystified.  The counterbore part doesn't look sharp at all - either they're worn down, or I'm misinterpreting what they're for.

And the pilot (center part that sticks out), which does, indeed, look either hardened or "burned," doesn't drill a hole; it goes into an existing hole.

Title: Re: What the heck are these ?
Post by: lptools on May 03, 2024, 08:06:26 PM

Hello, Sudsy. Mabe a de-burring tool for a counterbored hole?