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Fits the following chainsaws:


029, MS290, 034, MS340, MS341, 036, MS360, MS361, MS362, 038, MS380, MS381, 039, MS390, MS391, 041, 044, MS440, MS441, 045, MS450, MS451, 046, MS460, MS461, 048, 065, MS650, MS651, 064, MS640, MS641, 066, MS660, MS661, MS500i

Cannon bar code (starts) S1
GB bar code (starts) SN
Oregon bar code (ends) D025
Stihl bar code (starts) 3003
Sugihara bar code (starts) ST2


61, 64, 65, 66, 70, 77, 160, 162, 163, 180, 181, 185, 260, 263, 266, 268, 272, 280, 281, 285, 288, 298, 365, 365XP, 371, 372XP, 380, 385XP, 390XP, 394XP, 395XP, 562XP, 575XP, 576XP, 585, 592XP

Cannon (starts) H1
GB (starts) HV
Husqvarna (starts) 585-950
Oregon (ends) D009
Sugihara (starts VT2 or VT3)


SNHS42-50WRx2 42″[107cm] GB Lo Pro Milling Bar[Slotted]+Chains Kit 3/8 Lo Pro .050 137 drive links


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Stock 163
Part Number SNHS42-50WRx2 Part Number SNHS42-50WRx2 Categories: , ,
Cut speed

Check the opposite chart for fitment – Husqvarna users you will require an GB912 adpater found here for this bar. You will require a rim sprocket to run this lo pro milling kit – what’s that? Click here to ID your drive sprocket.

Fit your bar and chain and run in – [see picture 8 above for details] and don’t take short cuts – you want your new bar to last or not? ๐Ÿ˜‰

GB extra thin bar designed to run Stihl 3614-63PMX. When entering the world of chainsaw milling the term ‘ripping chain’ can be a bewildering one. Plenty of info online and of course plenty of contradictions to muddy and confuse things. Really ripping chain is simply this – a micro or semi chisel chain filed to 10 degrees instead of the usual 30 degrees. That is it in a nutshell and it really is no more complicated than that as much as people like to say it’s a ‘special chain’. ALL filing principles stay the same EXCEPT for this 10 degree angle [and some people use 5 degrees, some use 15 degrees – why? The sharper the angle the more aggressive the cut but rougher the board – the shallower the angle the less aggressive the cut but the smoother the board].

What do I get?

  • GB Lo pro milling bar

  • 2x P-3/8LP-050R Panther Lo Pro Ripping Chains

  • GB Lo Pro Drive Rim


  1. Starting to mill and not read our basic faq milling info? Click here straight away it’ll save you a lot of time and energy in the future.


Using a full chisel chain for ripping timber.
Have tried full chisel ripping timber and unless the timber is very soft ie. redwood soft, it seems to cause a lot of vibration. The manufacturers seem to agree on this point as all ripping chains are converted micro or semi chisel chain. So if you are going to adapt an existing chain don’t adapt a chisel style chain – yes you can make a chain into a ripping chain by making the angle 10 degrees.

Lo pro Ripping Chains

This is another potential internet rabbit hole to venture down only to emerge with more questions than you entered with ๐Ÿ˜‰ But read below before buying/asking these questions.

Stihl 3614-PMX – this chain cuts beautifully out of the box to give a smooth and even board. Developed between Logosol and Stihl this chain is our favourite when it comes to milling timber on an oversize set up.

‘Special Picco longitudinal saw chain with narrow cut and high cutting performance, mainly for use in conjunction with longitudinal cutting devices as well as mobile small sawmills such as Logosol. This semi circular toothed chain is characterized by a low vibration level and soft cutting behaviour.’

Oregon 91R – Better suited for smaller milling rigs ie. 25″(61cm) and under. Depth gauges seem to be overly high to take as much of a ‘bite’ as the Stihl PMX chain.

‘Oregon 91R Low Profile Ripping Chains are specially designed for use with portable chainsaw mills and for all applications where cutting with the grain of the timber is required, rather than across it. Standard chassis and cutter parts are used, the cutter grinding angle is the only difference from standard chains.’

Granberg 3/8 lo pro – Granberg adapted ripping chain does work well however sometimes the adaptation to cutters can be fairly crude and it is more of a nuisance to sharpen.

Adapter scoring and clearing cutters enable a faster cut yet maintain a smooth cut face and smooth milling action’. Click here to see the Granberg Ripping Chains to find out more. But again it is not a wonderful chain that will solve all your slow milling issues – it is simply an adapter semi chisel chain.

Panther 3/8 lo pro – New chain on the block! Based on a semi chisel cutter this chain gives a smooth easy cut as well as excellent stay sharp properties. Watch this space for a skip link version [good for bars 30″ and longer].

Pros of lo pro ripping chain:

  • Takes a slightly narrower kerf (only 15% less than a 3/8 standard chain)
  • Used on a lot of mills as the best chain
  • Reduces strain on the powerhead
  • Increases milling speed by approx 20%

Cons of lo pro ripping:

  • Increased chain stretch even with Stihl PMX
  • More expensive
  • Chain has less strength than standard 3/8 and .404 – so hit something hard and there is more chance of chain breakage. Heavy handed operators will struggle as there is less margin for sharpening and milling errors
  • Less stay sharp ability than the larger chains – larger chains can take more punishment than lo pro chains

So in conclusion – lo pro milling increases milling speed and decreases kerf wastage however there is less margin for errors and as usual for all chainsaw milling your chain sharpening must be spot on. We use it on most of our set ups now.


Customer Reviews

Based on 7 reviews
Peter Clinch
Good service

Great service always a pleasure to buy from this company

42โ€ low pro bar and chains

I bought the bar and chains to allow me to start milling slightly larger planks. The bar and chain combo works well with my Stihl 500i with little or no real difference in performance to the 36โ€ low pro bar and chains which came with the panther mill. I would highly recommend the chain and bars. I have a colleague who still uses a normal Stihl bar and chisel chain but this combo is slower and much more wasteful. The finish also is not as smooth. The order was processed and delivered very quickly. Great product, great service. Cheers.


Smooth & speedy planks! :D

Thank you for your advice, I'm chuffed to bits with the 3/8 lo pro! The planks cut fast and are so smooth for a chainsaw mill, I couldn't believe the results :D this will significantly reduce labour and wastage when finishing. As recommended I was gentle on the chain and the edge lasted surprisingly well, I cannot recommend this set-up enough!

Bob Saunders
Outstanding performance

I purchased this based on reviews and discussion I had seen online that were very encouraging..
Even after that I was still amazed quite how quickly the Lo Pro chain moved through the wood.
The Youtube reviews were also very helpful.
If you are in any doubt ask and the feedback/knowledge from the Chainsawbars team is invaluable.

Phil Day
Granberg saw mill

Over the past couple of weeks I've needed milling chains and a few extras for my Alaskan mill. My order was delt with in double quick time and arrived on my doorstep in only two days. There was even a couple of freebies in there too. A excellent and speedy service and the products are top quality...

Products that match

  • 3614-63PMX Stihl PMX Ripping Chain 3/8 Lo Pro .050[1.3mm] [Expected 20th June 2022 – Alternative Panther P-3/8LP-050 Lo Pro Ripping]

    Part Number 3614-63PMX
    Add to
  • 4.0mm[5/32″] Diamond Coarse – Sharpens 3/8 Lo Pro and 1/4 Chains

    Part Number DS G532CHPC
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  • 4.0mm[5/32″]Diamond Fine – Sharpens 3/8 Lo Pro and 1/4 Chains

    Part Number DS G532CHPF
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  • Oregon wooden file handle

    534370 Oregon Wooden File Handle

    Part Number 534370
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  • Stihl filing pouch with 4mm(5/32") file

    56050071027 Stihl Filing Pouch with 4.0mm[5/32″] Sharpens 1/4 & 3/8 Lo Pro Chains

    Part Number 56050071027
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  • Stihl 2 in 1 easy file 4mm(5/32")

    56057504303 Stihl 2 In 1 Easy File 4.0mm[5/32″] Sharpens 1/4 & 3/8 Lo Pro Chains

    Part Number 56057504303
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  • 56057504306 Stihl 2 In 1 Easy File 3.2mm[1/8"] Sharpens 1/4 .043 Picco Chain

    56057504306 Stihl 2 In 1 Easy File 3.2mm[1/8″] Sharpens 1/4 .043 Picco Chain

    Part Number 56057504306
    Add to
  • Stihl file holder and file 4mm(5/32")

    56057504327 Stihl File Holder + File 4.0mm[5/32″] Sharpens 1/4 & 3/8 Lo Pro Chains

    Part Number 56057504327
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  • Stihl wooden file handle

    8114907860 Stihl Wooden File Handle

    Part Number 8114907860
    Add to
  • 91R Oregon Ripping Chain 3/8 Lo Pro .050

    91R Oregon Ripping Chain 3/8 Lo Pro .050[1.3mm]

    Part Number 91R
    Add to
  • G417-3 3x Stones Pack Granberg filing stones 4mm(5/32") (Copy)

    G417-3 3x Stones Pack Granberg filing stones 4.0mm[5/32″]

    Part Number G417-3
    Out of Stock
  • LC10081-532 Vallorbe File Holder + File 4.0mm[5/32″] Sharpens 1/4 & 3/8 Lo Pro Chains

    Part Number LC10081-532
    Add to
  • Oregon 4mm(5/32") chainsaw file

    Oregon 4.0mm[5/32″] Chainsaw Files x12 – Files 3/8 Lo Pro and 1/4 Chains

    Part Number 70504
    Add to
  • Oregon file holder and file 4mm(5/32")

    Oregon File Holder and File 4.0mm[5/32″] – Files 3/8 Lo Pro and 1/4 Chains

    Part Number Q16265C
    Add to
  • Oregon pouch with 4mm(5/32") Oregon round chainsaw file

    Oregon Pouch with 4.0mm[5/32″] – Files 3/8 Lo Pro and 1/4 Chains

    Part Number 558488
    Add to
  • P+3/8LP-050-R Panther Plus Lo Pro Ripping Chain 3/8 Lo Pro .050[1.3mm][ONLY AVAILABLE IN 114 AND 137 DRIVE LINKS]

    Part Number P+3/8LP-050-R
    Add to
  • P-3/8LP-050-FSR Panther Lo Pro Full Skip Ripping Chain 3/8 Lo Pro .050[1.3mm]

    Part Number P-3/8LP-050-FSR
    Add to
  • P-3/8LP-050-R Panther Lo Pro Ripping Chain 3/8 Lo Pro .050[1.3mm]

    Part Number P-3/8LP-050-R
    Add to
  • PP-3/8LP-050-L Panther Platinum Chisel Unguarded 3/8 Lo Pro .050[1.3mm]

    Part Number PP-3/8LP-050-L
    Add to
  • Vallorbe 4.0mm[5/32″] Chainsaw Files Twin Pack – Files 3/8 Lo Pro and 1/4 Chains

    Part Number LC10002-532
    Add to
  • Vallorbe 4mm(5/32") chainsaw file

    Vallorbe 4.0mm[5/32″] Chainsaw Files x12 – Files 3/8 Lo Pro and 1/4 Chains

    Part Number LC10003-03-532
    Add to
  • Vallorbe plastic file handle with file angles

    Vallorbe Plastic File Handle with File Angles

    Part Number AL240
    Add to
Please email or call us +44 (0)1590 681259 for sprockets for this chainsaw
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