< TCT Router Bits

Router Bit - Lock Mitre

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These lock mitre router bits are used to produce interlocking 90° corner or edge to edge joints, locking the joint against movement when clamped, whilst providing a large glue surface area for guaranteed strength. Each bit features diamond ground, micro-grain tungsten carbide tipped blades for long lasting hardness and superior edge retention.
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  • D=35mm H=16mm L=51mm A=45° S=1/4" £35.00
  • D=51mm H=22mm L=68mm A=45° S=1/2" £50.00
  • D=70mm H=30mm L=76.8mm A=45° S=1/2" £80.00
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Router Bit - Lock Mitre
Regular price From £35.00
Regular price £0.00Sale price From £35.00
  • 3 Year Warranty
  • Used to produce an exceptionally strong, interlocking corner profile
  • Micro-grain tungsten carbide ensures long lasting hardness and superior edge retention
  • Perfectly balanced, vibration free bodies for a smoother cut
  • Shear angle blades slice the wood for a feather free finish
  • Anti kick back design for maximum operator safety

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TCT Router Bits
Each router bit features diamond ground, micro-grain tungsten carbide tipped blades. This tighter micro-grain structure means the blades offer long lasting hardness and superior edge retention. The body of each bit has been turned and then milled with uncompromising precision from a single piece of 4140 high tensile steel to give perfect balance for reduced vibration and therefore smoother cuts. 4140 steel has been chosen because of its toughness, high fatigue strength, and abrasion and impact resistance. The tungsten carbide tips are then brazed onto the bodies using induction to create an extremely strong joint that safely holds under the high stresses that occur when routing. The router bits are suitable for use on softwoods, hardwoods, veneers, laminates and composite materials.

Lock Mitre Bits
Lock mitre bits create an interlocking profile which locks the joint against movement when clamped and gives a large surface area for gluing for guaranteed strength. The bits can be used to create perfect 90° corner joints as well as producing the joint needed for edge jointing boards together. To create a 90° joint one workpiece should be routed horizontally on the table while the other is routed vertically against the fence. These lock mitre bits are most commonly used for constructing boxes, drawers, and cabinet parts in addition to edge jointing boards. The bits have minimum and maximum timber widths as follows: R5728 - 9mm to 13mm, R5729 - 10mm to 18mm, R5730 - 13mm to 25mm. For router table use only.

Superior Finish and Performance
The shearing angle of the cutting edges ensure they remain in constant contact with the workpiece to allow a smoother, slicing cut which eliminates tear-out and gives a mirror finish. The bits feature right hook angles which further enhances the cut due to the fast removal of chips. These bits feature an anti-kickback design which limits the feed rate of the material being cut to decrease the likelihood of a kickback, meaning each bit conforms to strict German DIN standards to ensure maximum operator safety. ©


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We will happily accept returns within 30 days. For more information about returns, visit our Returns page.


Customer Reviews

Based on 8 reviews
Melvyn O.
Great cutter

I have just purchased the R5729 - 10mm to 18mm lock mitre bit from Rutlands. The geometry of it is brilliant. I found it very easy to set up. It leaves a very fine finish with no tearing. My stock is just under 12mm thick and soft pine and has very fine edges which have been cut to perfection. I used double sided tape and supported my work pieces. I have no hesitation in recommending this cutter and on this experience any of the Rutland range of cutters. With next day delivery and great prices its win win every time

Martin B.
Well packaged & presented

Well packaged & presented, and most importantly, with me the next day. As for the results, I'm very pleased so far & have managed to find profiles not offered by other suppliers. Will no doubt be back for more.

James H.
Rutlands - my go to place for router bits

Tried many brands over the years, but happy to say I now won't go anywhere else for router bits. I've thrown everything at them, including the hardest walnut and ash, and they continue to impress with the quality of finish left behind. If you're serious about routing then investing in quality bits is a must.

Dave T.
Thoroughly impressed

Cheap bits tend to tear the wood & blunt quickly. These on the other hand have kept an ultra sharp edge & given me a beautifully clean cut - no burn marks & very little sanding required, if any at all. Thoroughly impressed.

Elliot F.
Ordered both the 2" and 1 3/8" diameter sizes to a...

Ordered both the 2" and 1 3/8" diameter sizes to add to my collection. I have only used the 2" bit so far but the cutting edge is extremely sharp and leaves an ultra neat finish.

Router Bit - Lock Mitre

Router Bit - Lock Mitre

Router Bit - Lock Mitre