Lock Miter Setup Instructions

You need to get both the fence position and the bit height exactly right in order for this joint to work. In woodworking circles the lock miter is often referred to as a trick bit by a feat of geometric genius the bit creates both halves of a mitered corner complete with interlocking tongues and grooves with a single router table setup. Set the approximate fence depth by visually.

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Lock Miter Bit Details

This video is about using the 45 degree lock miter bit.

Lock miter setup instructions.

Downloadable pdf instructions and a promotional video showing proper jig setup can be found on infinity s website. Align the midpoint of the lock miter cut with the centerline of the workpiece. Using the set up block raise or lower the bit until the block aligns with the tongue and groove of the bit. One is for smaller router bits cutting 3 8 to 3 4 thick stock the other is for the larger bits cutting 5 8 to 1 1 8 thick stock.

With the lock miter master jig you can set up a lock miter bit in no time at all. They re more stable and result in smoother cuts expect to pay 50 to 100 for a bit depending on the size. This video is about using the 45 degree lock miter bit. Your goal is to have a and b equal to each other.

11 16 for 9755 uniform thickness. A lock miter bit is one of the most challenging router bits to set up. Set the initial router bit height by using a piece of your stock as a reference. Yonico 15220 2 piece 22 5 lock miter instructions pdf download yonico 15122 15127 15127q 15129 15129q lock miter bit instruction pdf download tongue groove.

The set up block is. Lock miter bits come in a range of sizes the size you use depends on the thicknesses of your wood even the smallest lock miter bit makes a substantial cut so i prefer bits with a 1 2 in. Once it does it delivers a very strong and elegant miter joint that is virtually impossible to detect from the outside and offers the additional advantage of being self. Simple steps for airtight joints.

45 lock miter router bit instructions set bit height and fence depth 1. There are two sizes of the lock miter master jig. Yonico 15139 12 sided object instructions pdf download yonico 15330 3 piece birdsmouth router bit set instructions pdf download lock miter. Use the miter end of the set up block with the flat edge for 1 2 stock and the full 45 degree miter end of the set up block for 3 4 stock.

A lock miter router bit is not included. The two piece lock miter master jig set item 00 lmm is available now and sells for 49 90. Infinity s lock miter master jigs will work with most brands of lock miter bits.