FITFINDER Lock Miter Bit
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FITFINDER Lock Miter BitFITFINDER Lock Miter Bit
FITFINDER Lock Miter Bit
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FITFINDER

Lock Miter Bit


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  • Patent pending Center Finding Platform sets the correct bit height first time and every time.
  • With the height correct, only the fence needs to be adjusted for the perfect joint.
  • Designed to work with our FN12 FitFinder but will work with any height gauge.
  • Exclusive Glue Wells allow for tighter, easier to clamp joints by providing room for excess glue.
  •  Works with stock from 1/2" (13mm) through 3/4" (19mm) thick.
100% Satisfaction Guaranteed
If you're not 100% satisfied with your purchase, return it for FREE. Contact us if you have any questions.
WOOD Innovate Award 2024
Fast and precise lock miter joints

Consistently well-fitted lock miter joints quickly and easily.

The lock miter joint can’t be beat for making columns, newels, posts and cabinet scribes, but the bit and stock have to be exactly centered together. Only Microjig’s Lock Miter Bit features the Center Finding Platform milled into the bit body at the precise center of the cutting profile. A solid measuring point to set the correct bit height the first time.

Once the height is correct, only the fence needs to be adjusted to perfect the fit. This greatly simplifies the router table setup for perfect joints with minimal test cuts and wasted stock. Now you can confidently add this important joinery to any of your projects.

Henry Wang, Microjig Founder

FITFINDER Lock Miter Bit

FITFINDER Lock Miter Bit

FITFINDER Lock Miter Bit
FITFINDER Lock Miter Bit
FITFINDER Lock Miter Bit
FITFINDER Lock Miter Bit

FITFINDER Lock Miter Bit
FITFINDER Lock Miter Bit
FITFINDER Lock Miter Bit
FITFINDER Lock Miter Bit
FITFINDER Lock Miter Bit
FITFINDER Lock Miter Bit

Use it around your whole shop.

Over 30+ uses on table saws, router tables, jointers, and band saws.
FITFINDER Lock Miter Bit

Table Saws

The GRR-RIPPER was built for the table saw. It acts as a moving blade guard, shielding your hands from the saw blade through the entire cut. Right out of the box, the GRR-RIPPER can cut stock down to ¼” x ¼”. Because it provides 3 directions of control, your cuts will be cleaner and more precise.

FITFINDER Lock Miter Bit

Router Tables

The GRR-RIPPER provides incredible command over your workpiece on the router table. Whether you’re using the fence or freehand routing, its powerful grip controls stock and protects your hands from dangerous spinning bits.

FITFINDER Lock Miter Bit

Jointers

The GRR-RIPPER’s proprietary Green GRR-RIP material provides all the traction you need to properly flatten stock on the jointer. Because of its powerful grip, you can feed material over the cutter head without having to apply too much downward pressure.  The GRR-RIPPER makes proper face-jointing technique easy, and safe.

FITFINDER Lock Miter Bit

Band Saws

The GRR-RIPPER's legs and main body maintain a constant 90 degree angle. It can be used on its side which is ideal for resawing on bandsaws. The GRR-RIPPER glides along the table top and applies even pressure against the fence with your hands clear of the blade. Even pressure means less blade drift, resulting in smoother cuts.

Features.

FITFINDER Lock Miter Bit

FITFINDER Lock Miter BitFITFINDER Lock Miter BitFITFINDER Lock Miter Bit

Expand your FITFINDER system.

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Got questions?

Does the FitFinder Work with any other Lock Miter Bit?

Our Lock Miter Bit works with our FitFinder because we have a shelf milled into the bit to set the height from.

No other Lock Miter Bit has this feature, so they do not work as well with our FitFinder 1/2 Gauge.

See the FITFINDER system in action.

Specifications.

Included in the box
Parts
  • Lock Miter Bit
Parts
  • Router Bit (1/2"–14°)
Parts
  • 1/4" Relief Router Bit
*Promo Product
Accessories Included
Weight
0.3lbs
0.7lbs
0.3lbs
Package Dimensions
2.125" x 0.5" x 0.5"
2.125" x 0.5" x 0.5"
2.125" x 0.5" x 0.5"
Cutting Range (Table Saws)
Thread
Clamping Range
Clamping Pressure
Offsets
Kerf Range (Table Saw)
Angle Range
Calibration Range
Requirements

Router

Router

Any standard 14°-1/2" Dovetail Router Bit

Router

Compatibility

Available in 1/2" shank size.

Available in 1/2", 1/4", 12mm, and 8mm shank sizes.

Available in 1/2" and 1/4" shank sizes.

SKU

MB-050-0750LM

1/2" Shank: MB-050-0514

1/4" Shank: MB-025-0514

12mm Shank: MB-12mm-0514

8mm Shank: MB-8mm-0514

1/2" Shank: MB-050-025ST

1/4" Shank: MB-25-025ST

UPC
815267011733
815267010767
015267010811
Country of Origin

Designed in the USA

Made in Taiwan

Designed in the USA

Made in Taiwan

Designed in the USA

Made in Taiwan

Tariff Code
Patent #
MSRP
PROMO*

Customer Reviews.

Safety for every shop.

Your purchases help support Microjig's safety initiative to donate Grr-rippers to every public high school with a Career Technical Woodworking Program. Our objective is to raise the standards of safety for the next generation and beyond. Thank you. Work Safer. Work Smarter.

Learn More