Granberg Bar-Mount Chain Saw Sharpener, Model# G-106B

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Granberg Bar-Mount Chain Saw Sharpener, Model# G-106B

Granberg Bar-Mount Chain Saw Sharpener, Model# G-106B

  • Superior manual chain saw sharpener sharpens all major saw chain pitches
  • Allows you to perfectly match the chain manufacturer’s angles
  • Attaches to your guide bar in seconds
  • Accurately lowers depth gauge
  • The file size is determined by the pitch and gauge of the chain being sharpened

Designed by Elof Granberg over 35 years ago, the File-N-Joint is an industry standard for accuracy and durability. This guide allows you to file your chain right on your bar with professional accuracy. U.S.A. Chain Pitch (in.): Universal, Includes: Only the holder not the file, Includes (qty.): (1) File holder, Mount Type: Bar, Application: For accuracy, durability when manually sharpening

List Price: $ 29.99

Price: $ 35.00

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3 thoughts on “Granberg Bar-Mount Chain Saw Sharpener, Model# G-106B

  1. 135 of 138 people found the following review helpful
    5.0 out of 5 stars
    fastest cutting chain possible, some learning time required, December 23, 2010
    By 
    George N. Lawrence (Woodland, WA United States) –
    (REAL NAME)
      

    Amazon Verified Purchase(What’s this?)
    This review is from: Granberg Bar-Mount Chain Saw Sharpener, Model# G-106B

    With the Granberg File-N-Jig 106B you can achieve the fastest possible cutting speed and, with good technique, have very good overall chain maintenance time. All the precision work can be done in the field. Also, you can set the up-down file angle so you can correctly sharpen square corner chain (semi-chisel) that cuts much faster than round corner chain.

    How fast is the chain? You can always improve the speed of new chain significantly with the filing jig and good technique. You can maintain that speed through the life of the chain.

    It is truly satisfying to always have a torrent of fat chips coming out of the back of the saw.

    You might plan to spend an hour or two learning to use the jig. I include some tips that may help, but you will be the judge of whether much faster cutting chain is worth the investment in learning time.

    Comparison
    ———-
    I also have a Stihl FS-3 jig (I would rate this one star if it were sold on Amazon) and an Oregon 23736A jig (rated two stars, see my Amazon review). The Granberg 106B jig gives by far the best results.

    The strongest features of the Granberg 106B are its all-metal construction, a very stiff frame that resists distortion, symmetrically designed chain clamp screws, all adjustments are tool-free, and a really top quality indexed height dial. At 0.75 lb, it is the lightest and also the most compact of the three jigs I own.

    I use the Granberg indexed height dial to precisely control both the file height (for hook) and the depth gauge height. I can see the index numbers clearly, even when rain is landing on the dial. Each full revolution is exactly 0.100″ with marked and numbered subdivisions of 0.010″, so the math is easy. By reading within the subdivisions, I can control height to about 0.002″ accuracy and repeatability.

    The Stihl jig has no index marks, so you are on your own to figure out file height. The Oregon jig has a very small red plastic dial that was hard to read when new and quickly became impossible to read due to normal wear and tear. The Oregon jig changes height by 0.108″ for a full rotation and has twelve subdivisions of 0.009″. I remember some time back working with the Oregon jig on dim Washington winter days; frequently with rain or snow falling on the dial; trying to read the tiny, worn-off, red-on-red numbers; and doing arithmetic in my head using divisions of 0.108″ and subdivisions of 0.009″–not fun. I can read the Granberg dial under the same conditions, and I am just smart enough to do the math in my head with simple decimal divisions and subdivisions.

    Complaints
    ———-
    Amazon reviewer Bill B. complains that “the directions are just not clear” and “There are 3 or 4 important adjustments to be made each time you use the sharpener”. (Even with these complaints, he does give it five stars.) A number of people on forestry forums have expressed similar complaints.

    With the right technique, the adjustments are easy to make and will hold between filings; and the work will go quickly and smoothly.

    Some tips
    ———
    Here are some tips, developed over many hundreds of filings, that I hope will help.

    1. Start with good chain.

    Start working with the jig on the best chain you have: either new chain or expertly ground chain is best.

    2. Chain clamps ride on the rivet heads.

    When set correctly, the chain clamps will ride securely on top of the chain rivet heads. Do not over tighten the thumb screw in the back.

    If the chain clamps are properly set to ride on the top of the rivet heads, the jig will be secure. The clamps can be made to ride securely on 0.325″ chain and even better on 3/8″ chain because of the larger rivet heads. Adjust the two opposing clamp screws tight enough to prevent the cutters from rolling under the file motion and still loose enough to allow the chain to be advanced. When riding properly on the rivet heads, the front of the jig will not drop down due to filing activity.

    The thumb screw has to be snugged just enough to keep the back of the jig from dropping down or the whole jig from kicking back when you are advancing and setting the chain or making the various jig adjustments.

    If you tighten the thumb screw too much, the two sides of the jig will spread apart and the top will twist. You can feel this happen and see it occur if you look closely. The distortion of the jig will prevent you from achieving and keeping your adjustment settings. (See “8. Stabilizing the jig position with a bar dimple” below) If the pivot point of the rotating head is not maintained in the middle of the chain, you will need to adjust the stop screw each time you change sides. You are also likely to not tighten the thumb screw the same amount when you start. Then you must adjust the settings again. (I believe this is the source of the…

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  2. 24 of 25 people found the following review helpful
    3.0 out of 5 stars
    OK but not nearly as precise as some claims., May 5, 2011
    By 
    ZoneIII (USA) –

    This review is from: Granberg Bar-Mount Chain Saw Sharpener, Model# G-106B

    For an outstanding review of his product, I recommend George Lawrence’s review. It is so detailed and full of useful information that I printed it out and put it with the tool. As other’s have said, the instructions that come with the tool leave a lot to be desired so I highly recommend that you print out George’s review for reference.

    I had previously written a review after using the tool for the first time but now that I have used it about twenty times, I am re-writing my review.

    Before I get to the pros and cons, I should point out that I have worked with tools and machines all my life and I have a very good understanding and feel for them. I don’t fumble around.

    My previous review, after using the tool once, can be summarized by saying that it worked very good. However, after using it about twenty times, I have serious reservations.

    Claims of the precision of this tool can be very misleading, in my opinion. It seems a bit silly to talk about accuracy within 1/1000th of an inch when there is far too much slop in the settings to even come close to such accuracy. George Lawrence cleary has a tremendous amount of experience with the tool and he has probably developed extremely good feel for shortcomings of the tool that allow him to compensate for them.

    George recommends that you use the tool to sharpen a brand new chain. By doing that, you know that you are starting with teeth that are the same length. The problem with that is that most of the time you are going to be sharpening a used chain. After all, that’s what the tool is for and the teeth will never be the same length when the chain is not new. I did as George sugggested and sharpened a new chain but when the chain needed re-sharpening, the teeth were, to be sure, very different lengths. That brings us to the next problem: I used Lawrence’s advice about adjusting the clamp screws so the chain is perfectly centered in the tool but, even so, the teeth on each side needed very different amounts of sharpening. And when the you are sharpening a used chain, you can’t swing the tool around to compare the filing depth until they match because the cutters will not be the same length to begin with. The result is that you will be changing the sharpening stop when you switch to the other side of the chain and all bets are off as far as the lengths of the cutters go. The tool simply does not have the precision to control that.

    And that brings me to the next problem: Since the cutters are not the same length, if you file down the depth bars the same amount, they will not all be correct and that will result in vibration and bad cutting action. The only way around that is to adjust for each separate depth bar. That is very time-consuming, to put it mildly.

    Yet another problem is the file depth stop for the cutters. You must rely on feeling for a let-off of the file when filing. You will not experience a definite let-off. It is subtle and you may find yourself increasing pressure on the file frame to cut more and that throws things off even more. You will not get precision here. It involves feel and guess work which throws yet another variable in the mix.

    On my tool, the file also does not make contact with the cutter evenly along the entire length of the file, showing the file is not perfectly parallel with the guide bar. Lawrence apparently corrected that with his tool but you shouldn’t have to do that.

    The real problem is getting all the cutters the same length. It is not as clear-cut and simple as suggested in the owners manual or in Lawrence’s excellent review. Getting them even close will require a lot of experience, a very good understanding of the variables involved, compensation for the bugs, and a excellent feel for the tool. Even then, it is doubtful that you will get the precision that is claimed for this tool and you certainly won’t get accuracy to within a couple thousandths of an inch.

    When I sharpened my last chain, I first measured the length of each cutter with a dial micrometer and wrote the lengths down. They varied by a range of .028. I noted which cutter was the shortest and I adjusted the file stop so the file would just clean that cutter up. So far so good. I then sharpened all the cutters on that side but it was perfectly clear that the file was not taking much more off the longest cutters. Then I swiveled the file frame to do the cutters on the other side. Despite having the chain precisely in the center of the frame, I found that the file barely touched the cutters. I turned the stop screw in until I got some bite but I found that the next cutter needed even more adjustment and so on. So much for the claimed precision!

    The next time I use the tool, I am going to use a different procedure. I’m going to again measure the lengths of all the cutters (both sides) and adjust the stop for the shortest…

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  3. 28 of 30 people found the following review helpful
    5.0 out of 5 stars
    Very good product, September 4, 2006
    By 
    Bill B “Bill” (Newport OR) –

    Amazon Verified Purchase(What’s this?)
    This review is from: Granberg Bar-Mount Chain Saw Sharpener, Model# G-106B

    I researced maybe 3 different types and selected the Granberg only because it was stated to be the Original and still the best. It has lived up to the claims and have been very satisfied with the product. The only down side was the directions are lousy. There are 3 or 4 important adjustments to be made each time you use the sharpener and the directions just are not clear.

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