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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

Fits direct to MS880, MS881

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)


HSSA48-50WRx2 48″[122cm] GB Lo Pro Milling Bar[Single Slot]+Chains Kit 3/8 Lo Pro .050 153 drive links


Add to
Stock 201
Part Number HSS48-50WRx2 Part Number HSS48-50WRx2 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 8 reviews
Andrew Golabek
Excellent shop

Quick shipping and everything arrived as ordered. Perfect milling setup !
LoPro ripping chain cuts fast and smooth, do keep an eye out for chain stretching and tighten as needed, overall a great package.

Franz Lener
Super service


Bill Scriven
Amazingly service

A superb company who gave me fantastic advice and service

David Kellock
Excellent milling bar

It felt a lot better with the lo pro Stihl ripping chain, seemed to get through the wood better than the standard ripping chains. Bar seems great quality and after watching the helpful video on this site on how to break in a new bar i felt more confident.

Alun Scott
48โ€ bar & Lo Pro Chain

Great piece of kit and the Lo Pro chain has left a smooth finish when milling 1m Oak slabs.

Products that match

  • 3614-63PMX Stihl PMX Ripping Chain 3/8 Lo Pro .050[1.3mm]

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

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

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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

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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

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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

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  • 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
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  • 91R Oregon Ripping Chain 3/8 Lo Pro .050

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

    Part Number 91R
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  • 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
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  • LC10081-532 Vallorbe File Holder + File 4.0mm[5/32″] Sharpens 1/4 & 3/8 Lo Pro Chains

    Part Number LC10081-532
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  • 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
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  • 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
    Out of Stock
  • 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

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Please email or call us +44 (0)1590 681259 for sprockets for this chainsaw
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