Whilst using other pitches (especially in an oval hole format) is possible, the 3:1” hole size that will be used is nothing like the small round or square holes used for regular Wire-O binding, instead it wil be an oval hole shape, usually 6.5 x 5.5mm big, using this size and pitch of hole, makes inserting larger Coils quick and simple. The other users are those that need to produce a lot of large documents that will require them using coil sizes from 25mm up to 50mm. However this hole pitch is used by customers who already have Wire-O punching equipment and are not ready or do not want to move to a 4:1” or 6mm Pitch. A 3:1” Pitch hole is generally associated with Wire-O binding not Coil binding. The next pitch Coil that we produce is a 6mm pitch, this is no longer widely used and will generally be used with machines purchased from manufacturers like Renz, it will still work well and we can supply in any size and length. So if you have recently bought your punching machine or the tooling that goes in it, it will generally be 4:1”Pitch. A 4:1” Pitch is now the most commonly used pitch of Coil. Coil)/0.92ohm(MTL Clapton)/0.8ohm(MTL Fused Clapton)/0.

Oval hole patterns make the Coil insertion process a lot easier.Īnyway, back to hole Pitch: We manufacture three pitches of Coil. Introductions: The MTL 4-in-1 Prebuilt Coils Set Is Collectively Crafted For. Both shapes of hole work well, but if you are creating a document with a lot of pages, then we would generally recommend an oval hole pattern. Depending on the type of machine you are using, the shape of the hole will be either round or oval (double D shape). Choose from our selection of helicoils, including stainless steel helical inserts, helical inserts, and more. All this means is that the Coil will be made so that it will spin easily into the holes that you punch in your document.

The final consideration when ordering your Plastikoil, is the pitch that the Coil is made in. Length Coil, just ask and we can produce to your exact requirements. However we can manufactureĪny length that you need between 160mm up to one metre. PDC manufacture Coil to suit all standard paper sizes (A5, A4 and A3).

Stapled helix coil for sale