TSS Straight Razor Honing Solution Tool | 9x11x0.5″ Aluminum Lapping Plate | Produces Convex Razor Hones for Concave Razor Bevels


ATTN EU/UK:   if you wish to buy, seek via eBay | Unfortunately we can no longer ship directly to these locations


SKU: concavelappingplate9x11ellipse Categories: ,


Before the internet age, working professionals straight razor sharpeners used fine wheels or wheel-shaped hones to sharpen the razor so that the bevel itself would be concave.    Don’t believe that because everything you read in shaving-centric forums says your stones must always be flat?  Well, read what the world’s largest abrasives manufacturer wrote in 1934 – on printed page 12 {14/56 in PDF form} they state “…Fig. 2 is exaggerated a little to show exactly like the razor is the correctly ground bevel of a chisel – both are concave.” 

Until this contraption came along, however, keeping a wheel-shaped whetstone at home wasn’t exactly an easy endeavor, even if it was better for your shaves.   The pros used wheels, and men used strops and hones at home, generally trying to keep them as flat as they could manage, and when their edges got too thick they’d return to the professionals for “razor concaving” in their resharpening.

This metal shaping tool works with whetstones + sandpaper (that you also must purchase, and which we do not sell) to ultimately allow you to hone straight razors better than you ever can without this tool.   Believe it, or not, as you see fit.  You provide the sandpaper, sharpening stones, and razors; we’re providing two reference shapes.  This tool’s a one-trick-pony; it’s just a specific-shape(s)-maker, but you’ll find that shapes turn out to be costly to source ‘in nature’.   It is an expensive aluminum hunk to produce, package, and ship one by one, but it is the only one of its breed and you only buy it once for a lifetime.   A wheel shape’s always been best to present to razor edges; there just wasn’t a way for the razor “home honemeister” to keep a strict wheel shape.

The belief here is that YOU via this lapping plate will be able to hone a straight razor BETTER than The Superior Shave, EASILY.    Believe that, or not, as you see fit.   Read those screenshots related to our honing and decide if you’re being “worked” like in ‘pro wrestling‘, if it’s a bunch of shill nonsense, or real.    At this shop, there’s firm belief nothing affects straight razors’ shaving comfort equally to preparing them to be their most flexible.   Unfortunately, few honers-for-hire or shaving-forum-enthusiasts understand this (but not this guy, he bought one!), for they’ve been taught not to explore this concept, that it’s some cannibalism-like taboo, which is absurdly silly.   Your razor is your tool to consume as you see fit, remember that!  #thinkforyourself  #alwaysquestion

You’re buying a permanent way to ensure a more ideally formed straight razor cutting edge (bevel profile) occurs after honing than a flat vee-shaped isosceles triangle bevel derived from a flat abrasive field.

Shaping a hone with length toward the 9″ axis of this plate produces a wheel-shaped surface of short diameter (best to thin your bevel) with a very girthy large diameter across the width (so that it is nearly flat and never concave across your stone’s width, ensuring one continuous contact patch). 

Shaping a hone toward the 11″ axis produces a ‘skinny long ellipse’, a long diameter surface stone with short diameter across the stone; this is done for the feedback advantages it provides in finishing a razor, as well as for keeping a small amount of convexity over the stone’s length to in turn assure that you never end up with a razor with a convex tip, however slight.

In addition to stones, you can also shape wood or acrylic and use that wood or acrylic to back strops or lapping films to embed with pastes/sprays.

The short diameter wheel shape’s great at thinning bevels, and once you use this tool that way, you’ll find how helpful that is in aiding shaving comfort; it is a game changer.   It is a more important advantage, in the view here, than the ability as finisher.

The more complex long diameter narrow elliptical hone’s an ideal finishing form, providing feedback you’ll have to experience hands-on to understand, but takes longer to master.    By gently moving your razor’s spine off-axis (= away from 90° vs the stone length) as you hone on the finisher, you can contact your razor’s bevel in the very narrow range behind its apex which is still thinner than 0.1mm, and in this region when properly contacted the razor’s tip will flex and curve to the stone’s shape, allowing you to flex the edge and hold that flex as you move down the stone length and gently move your spine more to the 90° position.   For learning, however, you can stick to simply using it as you’ve used any flat finisher, keeping your razor’s spine ~90° to the stone length so as to make the hone’s effective diameter as long as possible.

This plate’s only endorsed here for use with modern style full hollow ground or extra full hollow ground razors, such as any produced with this dual-wheeled machine from the late 19th century which is used at all multiple-worker “factory” production facilities of hollow ground razors in the European Union (“factory” a bit of misnomer here now when the largest remaining has but 10 skilled workers hollow grinding and sharpening, in the Victorian Era one Sheffield factory had 600!).   Though they may feel a bit better than they did, wedge grind razors, 1/4-hollows, etc. (all combined minute % of buying population) will likely not experience large changes to their behavior.

Fully hollow ground razors with softly tempered steel dramatically improve with this tool’s shapes, especially true with vintage extra hollow razors from Sheffield, England, which benefitted from a low Rockwell hardness (the benefit a quite high natural ability to flex w/o chipping).   While it is true modern metallurgy’s produced razors with superior hardness and nearly equal flexibility at superior combined minimum ability to each than vintage Sheffield stuff, production of Sheffield’s time was vastly enormous to today, so for the price such aforementioned modern razors cost, if you consider the time hunting for a great condition vintage Sheffield specimen free you’ll still do better for your money buying Sheffield extra hollows (if price is no object and that seeking time’s valued, however, we recommend Thiers-Issard extra hollows  6/8″ and larger).

Why don’t these silly plates show up used on the secondhand markets?  We’ve sold >100pcs already, and a few hundred stones shaped from them.   That’s weird – it must be a lot of noble suckers out there too principled to fob off stupidity upon others.

Additional information

Weight 128 oz
Dimensions 15 × 10 × 2 in

USA, Canada, Worldwide