Instructions - Lock Miter Router Bits

SAFETY

• Lock Miter Router Bits are designed for use with a table-mounted router only.
• RPM range between 13,000 to 18,000 depending on bit diameter.
• Always unplug the router before changing or working around the router bit.
• Always use push sticks and other appropriate safety devices to keep your hands a safe distance from the bit.

MATERIAL PREPARATION

The Infinity Lock Miter Bits are designed to join material from 3/8" to 1-1/8" thick. The material must be flat and square on all sides to produce straight, even joints.

BIT SETUP

Mark the centerline of the stock thickness and adjust the bit height so that its midpoint aligns with that mark as shown in the illustration at right. Bit height is fine-tuned during the test cuts described later.

FENCE SETTINGS

The amount of bit exposure outside of the fence should equal the thickness of the stock being used. When set correctly, the cut will leave sharp edges without reducing the width of the work pieces. If any portion of the square edge remains after the cut, increase bit exposure slightly.

ADJUSTING THE SETUP

The 90-degree lock miter joint is cut with one piece flat on the table and the other vertical against the fence. Make a test cut on one piece flat on the table and then measure the flat portions along the outside edges of the cut. If they are not equal in width, adjust the bit height to correct them. Adjusting bit height affects the fence setting, which may need to be readjusted. When satisfied with the table-cut piece cut, machine both halves of the joint, one flat on the table and the other vertically against the fence to confirm the fit. Save a section of the final table-cut piece to use as a gauge when using the Lock Miter Bit in the future to joint wood of the same thickness.

Tip: The Infinity Lock Miter Bits can also make effective glue joints using the same setup by machining both halves flat on the table, one face up and the other face down.

JOINT ASSEMBLY

The Infinity Lock Miter Bits create a self-aligning joint with a large amount of glue surface. Apply a coat of glue to the contact surfaces, assemble and clamp using just enough pressure to close the joint. Make sure the assembly is square and set aside to dry.

CLEANING AND MAINTENANCE

For the best performance, keep your Infinity Lock Miter Bits clean. DO NOT use caustic materials like oven cleaners as they can damage the bond between the carbide cutters and the bit body. Click here to see our recomended cleaning products for router bits, blades and shaper cutters.

Infinity Tools Customer Service: 1-877-USA-BITS (872-2487)