Furthermore I invite you to throw some calipers on a range of 1/4" shanks to see how sloppy the tolerances on them are and most likely you have already put a "6mm" shank in your collet. Duologi is the trading name of Specialist Lending Ltd, which is authorised and regulated by the Financial Conduct Authority (register number 774712).

Solid Carbide Router Bits Speeds, Feeds | Rennie Tool Company Solid Carbide Router Bits Speeds, Feeds | Rennie Tool Company

You can hardly tell a difference with the naked eye, and the bits will fit in "just fine" either way.If you are lucky it "works fine", but now the collet no longer grips the original bits firmly and safely, so you have the risk of a bit flying away in a random direction every time you use the tool "properly" with the correct bits. Use only on professional routers with 80mm deep plunge and suitable one piece multi-slit collet to ensure safe cutter retraction into base.

Straight Router Cutters | Router Bits | Screwfix Straight Router Cutters | Router Bits | Screwfix

Router tools boast versatility with the possibility of being attached to a router table or handheld. Despite this, it isn’t particularly effective in removing chips from holes (this is where up cut router bits come in). Up/down compression router bits create crisp edges on a board’s side when top and bottom edges alike require a clean cut. These router bits are in constant contact with the workpiece in question, which facilitates a consistent shearing action.When it comes to using a routing tool to fashion shapes within a multitude of materials, not a lot can be achieved without router bits. The purpose of a down cut router bit is to create a crisp edge around the hole it’s cutting so you get a good finish at the top of the cut.

Router Bits | Collections | Rennie Tool Company Carbide Router Bits | Collections | Rennie Tool Company

There is a bit of tolerance, so you can certainly fasten the screw harshly enough to do those extra 0. As a one-time kludge, ok, maybe, but even then you might want to get another collet and keep track of which one you are abusing. Our UK straight router cutters come in a wide range of sizes allowing you to accurately cater to your project. The OP does not have a "trim" router but a "compact" router by Performax which does provide 1/4" and 3/8" collet capacity.Note that even if you can't hear ,or see it, any wobble does cause wear on both collet and bit shaft and tends to become worse and start affecting the "right" bits too. While the chips are being removed, the bit can also fray the wood fibres at the top of the cut, which leads to damage.