I’ve wrecked those grace screwdrivers before, the parallel ground slotted ones.
Screwdrivers are TOOLS, tools break when they are stressed beyond their limits.
Screwdrivers are not created equal and some will withstand a lot more stress than others.
The biggest mistake nimrods make with screwdrivers is using bits that don't fit snugly and fill at least 90% of the slot from end to end.
Using a general purpose screwdriver that isn't hollow ground, so it has flat sides, instead of a ground off "V" is just asking for trouble and it reeks of shoddy workmanship.
Most people don't know how to properly use and maintain a screwdriver for the best results and it shows up pretty quickly.
Are the grace drivers ground and sized for gunsmith work ?, Or are the just generic drivers for household use ?
In contrast with the tapered tips of common drivers, the tips of the slot drivers are ground to a consistent thickness, creating parallel faces for better registration in the screw recess. The accurate fit reduces risk of slippage, helping prevent damage to the screw or surrounding surfaces. We also offer square-recess and Phillips drivers
The bits for these have held up VERY well, the big plus is that they are non magneticThey also make a bit for 1911 grip screws - this set is about the best well rounded for gun work, but they sell and you should pick up a few of the sizes that are not included in this set. I also bought a couple of 3" spare shanks and made some palm sized drivers. Would not hurt to pick up a few sacrificial bits that can be ground to size.
Overall very happy with the price and service from Chapman.
I also have a set of the Grace gun smith drivers, they are excellent but not holding up as well as these.
Other than the standard "driver needs to fit the slot" - short drivers give more control and less chance of slippage....
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Never broke a tool eh, tools break for more than one reason biff
That’s been one of my complaints. Why does a gunsmithing screwdriver need to be 7”long. Wasn’t real happy with my Chapman set either. The blades always seemed too thick for everything
Wedge shaped tips were/are the standard for the British gun trade, and nobody can accuse them of ruining screw slots more so than their North America counterparts. Watch Jack Rowe on YouTube and be amazed by the work they do with "turnscrews" I would have mistaken for blunt wood chisels.
Having said that, Brownell's Magna-tip set is my go-to, and I have the thin bit set. They are prone to twisting, and I find that they are much improved by taking about 1/16" off the tip. Maybe someday I will be using dull wood chisels like Jack Rowe.