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Saw Chain Terminology
Saw Chain Terminology

Saw Chain Terminology

Identifying the basic components of saw chain and understanding their overall relationship can help determine the proper chain type for your chainsaw, application, and needs.

Chain Anatomy Video

Learn what parts make up the anatomy of a saw chain and what the relationship is between these components.

Parts of Cutter

Parts of Cutter

1. Top Plate
2. Cutting Corner
3. Slide Plate
4. Depth Gauge
5. Gullet
6. Toe
7. Heel
8. Rivet Hole
9. Clearance Angle
10. Depth Gauge

Parts of Cutter
Four Basic Components of Saw Chain

Four Basic Components of Saw Chain

1. Cutter
2. Rivet
3. Drive Link
4. Tie Strap

Four Basic Components of Saw Chain

Saw Chain Identification

To identify saw chain you need to know the following:

Gauge

Gauge

Chain Gauge is the Drive Link's thickness where it fits into the guide bar groove, matching the guide bar gauge. The gauge of the chain and the gauge of the bar must match. Oregon has several gauges of saw chain: .043", .050", .058", and .063". Normal wear can make it difficult to accurately measure chain gauge on a worn chain. Always order by the number stamped on the drive link of your old chain to assure correct gauge. Please see table below for more information.

Pitch

Pitch

Chain pitch is the size of the chain and is defined as the distance between any three consecutive rivets divided by two. Oregon chain is made in several pitches - 1/4" is the smallest, 3/8" is the most popular, and 3/4” is the largest. Pitch is important because the drive sprocket must be the same pitch as the chain, and if applicable, the bar nose sprocket. The easiest way to determine the pitch of your chain is to look at the number stamped on the drive link. Please see table below for more information.

Cutter Type

Cutter Type

There are various cutter types:
1. Chipper
2. Semi-Chisel
3. Chamfer-Chisel
4. Micro-Chisel
5. Chisel

Sequence

Sequence

Saw chain sequences include: standard, semi-skip, and skip.

Saw Chain Family Specification Chart — Retail

Not all saw chain mentioned on the packaging or in search results will fit every version of equipment listed. To make sure you are getting the correct part feel free to call our Customer Service team at 1-800-223-5168.

Oregon chain sold in retail stores such as mass merchants, home, and hardware stores, uses a letter system that corresponds to chain types, as well as pitch and gauge.

Please see table below for more information:
 

saw chain pitch
Pitch

gauge
Gauge

Chain Class
Retail Chain Code Chain Type
AdvanceCut
3/8" Low Profile™  0.043" R 90PX
3/8" Low Profile™ 0.050" S 91PX
3/8" 0.050" D 72V
3/8" 0.058" P 73V 
 ControlCut
0.325"  0.050"  H 20BPX
0.325"  0.058" J  21BPX
0.325"  0.063"  L 22BPX
1/4"  0.050"  A 25AP
 VersaCut
3/8" Low Profile™  0.050" T 91VXL
SpeedCut
0.325"  0.050"  M Pro Series 95TXL
0.325"  0.050"  G* 95VPX*
PowerCut
3/8" 0.050" E Pro Series 72LPX 
 3/8"  0.050" B 72LGX
0.325" 0.050" Q Pro Series 20LPX
0.325" 0.063" V Pro Series 22LPX


*Chain part numbers have been obsoleted. Contact your aurthorized Oregon Distributor for Availability.
 

Saw Chain Family Specification Chart — Servicing Dealer

Not all saw chain and guide bar mentioned on the packaging or in search results will fit every version of equipment listed. To make sure you are getting the correct part feel free to call our Customer Service team at 1-800-223-5168.

Saw Chain Pitch Saw Chain By Gauge 

saw chain pitch
 

gauge
.043"
gauge
.050"
gauge
.058"
gauge
.063"
1/4" 25 
3/8" 
Low Profile
 90  91
.325"

 20

95

21 22
3/8"  

72

 73  75
.404"

27

59

68

FAQs

What is chain gauge?

Chain Gauge is the Drive Link's thickness where it fits into the bar groove. The gauge of the chain and the gauge of the bar must match. Learn more.


What is chain pitch?

Chain pitch is the size of the chain and is defined as the distance between any three consecutive rivets divided by two. Learn more.


Why chisel chain cuts faster?

Rounded cutters must re-cut the end-grain grain several times until the full width of the “kerf” is reached. Chisel cutters are square and cut a full width “kerf” with every pass.

Related Topics

Setting-Up Your Chainsaw

Setting-Up Your Chainsaw

Replacing Chainsaw Chain

Replacing Chainsaw Chain

Sharpening  Chainsaw Chain

Sharpening Chainsaw Chain

Tightening Chainsaw Chain

Tightening Chainsaw Chain