If it's an HW35, then it would be an angle grinder![]()
Hi,
I was wondering what the BBS tinkerers favour for carrying out his job? Does it depend on the rifles design and access and which bit needs deburring?
Cheers
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If it's an HW35, then it would be an angle grinder![]()
Far too many rifles to list now, all mainly British but the odd pesky foreigner has snuck in
I like a flat bladed needle file with an industrial diamond coating. Put something on the tip like a bit of insulation tape or a plastic guard so you don’t put dints in the compression chamber. This is for first pass to get the sharp edges off. You want some 1000 grit aluminium oxide paper to put a silky smooth radius on things, so buy some of this and a Magnum ice-cream. Enjoy the ice cream then wash and dry the wooden stick & stick some of the oxide paper to it to make it easy to finish the metal. Polish with Solvo AutoSol degrease and touch up the bluing.
For deburring the inside of trigger pin holes etc, hot glue a piece of thread or string to the end of the shank of a Dremel type spherical stone, thread the thread through the hole from inside the compression chamber, grasp the shank between thumb and finger and twiddle under load until the sharp internal edges disappear. If you want to go mad you can find a way to polish the edge as well but I can’t be bothered.
Main thing is to stop the piston seal getting nicked, and removing any sharp edges that can pick up on surfaces they slide against. The foot of the cocking lever is a particular component on HW30 guns that needs this addressing.
Good luck!
One of the most versatile tools for majority of deburring operations is a good quality half-round needle file. Then can be wrapped in any grade of silicone carbide paper for finer finishing.
Cheers
Greg
For the inside of the cocking slot I use a length of half inch dowel with fine wet & dry wrapped around it (oiled too) , and another much smaller dowel for the end of the slot.
Some rifles are worse than others for burrs there, my Hatsan 55 was terrible & came with two large nicks in the piston seal from installation.
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A small needle file, preferably a diamond one, is good for the job.
Pete beat me to it, but the 35 is older by design and more robust; an angle grinder will work, but a cement mixer with 12 London bricks thrown in knocks the edges off pretty well![]()
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Just adding, riffler files, and nail boards, are great. Don't get caught nicking the board and don't put them back dirty!!
Back in the days when I was putting the finishing touches to two stroke barrel ports I found that the small triangular section oilstones designed for sharpening saw blades worked well.
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Thanks for the input guys. Sounds like i already have most of what i need.
I believe there is such a thing as a deburring tool but was not sure what application it was designed for. By the sounds of things i don't need one anyway.
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