Tool Talk

What's-It Forum => What's-It Forum => Topic started by: rustyric on March 01, 2018, 09:17:53 AM

Title: What are these for please ?
Post by: rustyric on March 01, 2018, 09:17:53 AM

Made by Bowers and in an imperial size.

(https://i.imgur.com/VGFq4Ns.jpg)

Title: Re: What are these for please ?
Post by: lptools on March 01, 2018, 11:28:09 AM

Hello, Rustyric. You have a set of Counterbores, the pilot (opposite the shank end) enters a pre-drilled hole . The larger diameter cutter cuts a larger hole so the head of the bolt bolt or capscrew ends up flush, or slightly below the surface. . Picture a set of vise jaws, and the way the screws are inset, most likely a counterbored hole. I am not familiar with the manufacturer. Regards, Lou

Title: Re: What are these for please ?
Post by: rustyric on March 01, 2018, 12:17:59 PM

Thank you for your reply

Title: Re: What are these for please ?
Post by: Plyerman on March 01, 2018, 04:51:40 PM

Yep, what Lou said. Here's a longer-style counterbore tool, which just got done counterboring a hole. 

(http://www.frets.com/HomeShopTech/Projects/Bison/bison30s.jpg)