The "Big Mert" file guide is used by clamping the blade between the jaws, enabling you to precision file both sides of the blade dead even using files or a grinder. The benefits are blade bevels starting perfectly even, and stick tang shoulders being dead square and even for perfect bolster fit. Or anything else you need to file two sides to be the same on. The file guide is in solid stainless steel, and will not rust when dunked in water during grinding to keep the blade cool. Steel dust will not stick to the non-magnetic steel. The face is protected by carbide strips, which only diamond or other exceptionally hard tools will scratch. These are 78 HRC and very hard but: NOTICE ceramic belts can and will damage carbide. This tools is for use with hand tools, or normal aluminum oxide belts if using a grinder. The carbides are 3.9 mm thick and can be replaced if required. The carbide strips are recessed slightly down into the stainless steel for added protection. This way the strips will not be knocked off, or be under pressure when clamping a blade in the file guide. This also ensures there is less pressure on the carbide strip when clamping in a blade as they back onto a shoulder of steel. The file guide accepts up to 70 mm wide blades (2.75 Inches) up to 40 mm (1.6 Inches) thick.
Note: This fits on both sides of the platen, as the long bolts only point inwards when used on the right side of the platen where there is space for them. When grinding on the left side of the platen, the bolts point towards you and the recessed bolt heads make sure you have access on both sides.
Note this is a precision hand tool and can be hard to open the first few times. As any file guide it needs to be screwed on firmly and evenly, letting the guide pins do their job.
Massive 49.5 mm wide body for better control on wide blades
Each carbide strip is 20 mm wide, 80 mm long and 3.9 mm thick, at HRC 78
Non-magnetic, steel dust does not stick to it
Stainless will not rust
All screws are recessed into the body for easy access on flat platen
Accepts up to 70 mm wide blades, up to 40 mm thick blades and guards
Guide pins are hardened steel for an even more sturdy construction and less chance of jamming
CreativeMan logo on one side and a custom BigMert logo on the other
Dimensions are 100 x 85 x 15 mm