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STIHL RAPID™ Micro™ Harvester is a specially designed and reinforced version of .404" pitch saw chain.

Model Features

  • Cutter Heels
    Patented, asymmetrically shaped cutter heels enlarge the running face. This considerably reduces the pressure on the cutter and extends the service life.
  • Cutter Links
    Semi-chisel with slim, straight sided cutter.
  • Drive Links
    The drive links are reinforced around the rivet holes (A). The part of the drive link (B) which runs in the guide bar groove is recessed thickness of the drive link equals 0.080”.
    The patented OILOMATIC® system found on STIHL saw chains is an exclusive selling feature. This is a specially engineered groove designed to channel oil to the critical wear areas. This superior lubrication feature gives the customer extended chain life with lowered tendency for stretching.

    A further development of the OILOMATIC® system is the oil reservoir next to the OILOMATIC® channel. These reservoirs fill up with oil when the drive links pass the guide bar’s inlet hole and are emptied by the centrifugal force acting at the bar nose. This provides more oil for distribution to the chain, groove and rails and protects against premature wear. Simply put, it brings the oil to where it is needed. Available on all STIHL saw chains.
  • Tie Straps
    Asymmetrically shaped running faces increase the wear surface. This considerably reduces the pressure on the tie straps and extends the service life of the chain.


.404" Pitch - Part #3996

Important Information

This symbol indicates that the product has increased risk of kickback injury and is for use only by persons with extraordinary cutting needs and experience and specialized training for dealing with kickback.

This symbol indicates that the chain is a low kickback chain. STIHL recommends the use of a green-lableled low-kickback chain.


WARNING! Improper use of any power tool may cause serious or fatal injury. Read, understand and follow carefully the operating and safety instructions in your instruction manual before using such products.

STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only.


OILOMATIC® STIHL RAPID™ Micro™ Harvester (RMH) is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from Stihl RM chain I replaced my good green chain on my ms 271 Farm Boss with a new RM (.325,. .063, 81) CHAIN FROM MY LOCAL stihl dealer. It reminds me very much of the chains I used for years on my chainsaws. I refer to it as a non-political lyrics correct chain that will cut wood. Not that the green chain will not cut wood, it will, but the RM chain will do it faster and stay sharp longer.
Date published: 2017-02-13
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You Will Also Need

For Your Safety


Saw Chain Selection & Identification Chart (PDF)
Saw Chain Wear Guide (PDF)
Harvester Saw Chain Instruction Manual (PDF)
STIHL Limited Warranty
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