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Sharpening News
Open For Business
Intensive training over we now make an effort on other aspects of the business. Summer is in full swing and there’s the everyday demand for garden equipment. Polishing and sharpening the humble spade pays dividents effort wise as does touching up the half moon lawn edger. `In a few months time we wil see a different crop of gardening tools arrive in the workshop as summer drifts into Autumn and the days shorten once more
SHARPENING NEWS
New Machinery Arrives
We have had new machinery delivered but what you see here is our bread and butter scissor machine set up for domestic and general purpose scissors. It can be changed around to suit Left Hand Scissors. It’s called the “Twice As Sharp” as it does produce an edge thats twice as sharp as many seen ex factory. We can change the usual grit grinding wheel for a diamond unit - it then becomes the “Okami Gold” so called as the diamond wheel is gold in colour. We use that set up for high end hairdressing and grooming scissors. Those have highly polished cutting edges, however, on domestic and general purpose scissors this polished edge would cause the item being cut to push along the blade. Leaving the edge a little more rough allows the scissor to grip it as it cuts it.
SHARPENING NEWS
Getting the Best Out Of it
Covid is still persisting so many eating houses are closed because of restrictions. Few chef’s knives are being worked on but the domestic market is as good as ever. Chef’s knives need the smallest level of attention as they never drive them into total bluntness and have them touched p frequently. We grind knives to very precise angles, and have to guarantee repeatability. We use a special jig on a dedicated machine the Tormek T8 and a little bit of complex trigonometry to set it up. This method uses 3 vitals the diameter of the grinding wheel, the distance from the stone to the rest for the knife holder - seen here using a Vernier gauge. and the distance to the edge from the same bar (via a blade holder) we can calculate with high precision the grind angle we achieve. Domestic knives are set up to have an edge angle in total of 30° or 15° per side if not single sided, chef’s and high calibre knives with very hard steels can go down to 20° or 10° per side. Even we call that scary sharp. It does have drawbacks though as the edge is more fragile and has a limited life as damage can occur
SHARPENING NEWS
Expensive Jigs
This month we took delivery of a Twist Drill Sharpening Jig seen here, however, it is not as complex as it looks but will enable the operator to effectively sharpen twist drills on the Tormek to a perfect point and spot on angles to suit the material being drilled. Small drills are not expensive but larger ones certainly are. Sharpening them calls for precision and perfect symmetry otherwise they produce oval holes. The jig is designed to produce a “4 facet” point this finish is designed to to eliminate drill wander on pressing the twist drill into the work piece. Using our diamond wheel all materials can be sharpened including HSS & Tungsten.
SHARPENING NEWS
Sophisitcated Machinery For Convex Scissors
Pictured here is our Hira-To, this is a very specialised machine for working the perfect edge on Convex Scissors. Convex scissors are much used by professional hairdressers and dog groomers, expensive and ultra sharp they need spacial attention. By using several fine grades of abrasives the edge is first made and then polished slowly into the convex body shape of the top of the blade. Finally this is polished with diamond honing paste on a felt pad. It takes some practice to learn and some time to execute to a pro edge and finish. We spent some time in covid lockdown working on some old practice scissors just to keep the muscle memory high.
SHARPENING NEWS
Get Some Balance
Just after New Year is the time of year many who plan ahead, as most gardeners do, get the mower up to scratch. A sharp blade cuts rather than tears the grass and the difference is obvious when you see the results. Most blades can be sharpened a few times depending on the damage incurred in use. We balance the blade as a last step to ensure smoothness in mowing.
Sharpening News
Groovy Man Micro Grooves in Scissors
We have acquired an expensive Corru-Gator machine, the special slow speed diamond wheel it features cuts micro grooves into a scissor blade’s edge. These grooves prevents the material pushing being pushed along the blade. Professional pet groomers favour these modification to standard scissors, animal hair being more tough than human it does have a tendency to slide.
There’s also industrial applications for special materials such as aramid and carbon fibres these being tough to cut and the use of special dedicated shears that need this special fining touch
SHARPENING NEWS
The finishing Touch
Edges need protection, users need protection from edges, so many shapes and sizes!
We spent some tome looking for a way to finish of scissors, clipper blades, chisels and pointy tools in general and found the answer in a hot dip coating of strippable wax. Easy to remove and to some degree reusable this is a very effective and inexpensive way to protect edge tools from transit damage and the unsuspecting from cuts.
Sharpening News
Mail order Sharpening
We have been asked many times if we do mail order sharpening across the UK. Some customers pressed us sufficiently for us to run a pilot scheme and it works well so we’re rollimg it out now
Sharpening News
House Calls
Most of our equipment is workshop based, large heavy and or wet. However after speaking to the Cutler’s Association in Sheffield we have found a machine that gives kiives a perfect edge with a cold dry grind. The CATRA sharp is light, portable and using CBN Abrasive. Cubic boron nitride (CBN) is a superb abrasive material designed specifically for advanced wear-resistant characteristics. It is a comparatively recent material innovation which has been earmarked as one of the greatest technological advancements of all time for abrasives. Almost as hard as diamond it can be use in properly designed machines to grind without serious heating of the edge resulting from the materail removal. Our CATRAsharp can be brought to you to perfom knife sharpening at your premisis
Sharpening News
New Surface Grinder Arrives
We have acquired an specialiity surface grinder to make more accurate finishes possible on Planer blades
Address
Riddles,
Back Lane
Bomere Heath
Shropshire
SY4 3PL
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