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Picture of HD-806 True Radius PRO sear stoning jig
Picture of HD-806 True Radius PRO sear stoning jig
Picture of HD-806 True Radius PRO sear stoning jig
Picture of HD-806 True Radius PRO sear stoning jig
Picture of HD-806 True Radius PRO sear stoning jig
Picture of HD-806 True Radius PRO sear stoning jig

HD-806 True Radius PRO sear stoning jig

Sear Stoning Jig for 1911 Sears
4 review(s)
$119.95

 

Designed by Chuck Warner of Warner Pistols and manufactured by Harrison Design, the True Radius PRO stoning jig will guide you to stoning the perfect radial primary contact surface on the nose of your 1911 sear. This will give a smoother, more consistently creep-free trigger pull than conventional methods commonly used.

The PRO jig is EDM machined to four different radial segments around the circumference of the discs. The different segments will accomodate sears having center line-to-nose lengths covering the full range of USGI spec sear nose lengths. The HD-806 True Radius PRO jig will cover sear nose lengths from .402", .403", .404" and .405".  It also allows you to just stone the minimum amount of material from the nose.

This jig will aid the pistolsmith or advanced hobbiest to create a radial primary engagement surface on your in-spec sear.  Comes with PRO jig, 2 sear pins and instructions for use.

PLEASE NOTE - Many pistols on the market today as well as many replacement sears have a nose length that is below USGI spec. My sear jig will only work with sears having a .402" or longer distance from the sear nose to the centerline of the sear pin hole. If you want to use this jig to stone sears that are too short, this jig will not work for you and you should not buy it.

 

https://www.shootingillustrated.com/content/1911-harrison-design-hd-805-true-radius-pro-sear-stoning-jig/

 

Damaged or lost the sear pins that came with your jig? We have replacements available - 

https://harrisoncustom.com/hd-122-bp-sear-pin-each

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Existing reviews

So far, great!
5
I have used this jig to smooth out the sear and trigger pull on 3 different 1911's.  Easy to use - just go slow and take your time.   Followed the provided directions, and the result was a remarkable improvement over the original factory.  It reduced the pull weight about 3/4 of a pound, but it was very smooth pull.   I was more interested in smooth and crisp break than reducing pull weight.  Great product, highly recommend it... I do also highly recommend that one always test the resulting work carefully to make sure you maintain the reliability/functionality of the semi-auto function.
sebuss@comcast.net | 10/22/2017 4:25 PM
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Excellent sear honing jig.
5
I have used several different types/brands of sear honing jigs over the years.  I purchased the HD-806 jig about a year ago.  Since then I have used this jig to tune many 1911 style pistols.  Absolutely the best I have found.  Produces a much better sear angle, more precisely than my other jigs.  I plan to purchase another HD-806 jig soon, just to have another one on hand.  The first one is no where near wearing out.  Great value for the sear angle that it produces.
dbarham@cebridge.net | 3/21/2019 10:35 PM
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Absolute Best Sear Stoning Tool on my bench.
5
This is an update to my review of earlier this year.  Just for my own information and satisfaction, I’ve had the opportunity to stone a few sears (used and new).  I first stoned the sears with a traditional sear jig then checked the feel and pull weight.  I then re-stoned the same sears with the HD-806 jig and reinstalled the sears in the same pistol.  The feel and pull weight has always been improved.  The HD-806 is the only tool I use now for a sear that is not too short originally.
dbarham@cebridge.net | 12/20/2019 12:02 PM
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HD-806 TRUE RADIUS PRO SEAR JIG
5
What an ingenious little tool.
It is foolproof IF you understand what you are doing.
I've done all 4 of my 1911s using this, along with quality components and all 4 break like a glass rod.
jheck98@gmail.com | 4/22/2023 10:26 PM
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