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Sewing Machine Knives

At GoldStar Tool, you’ll find sewing machine knives of great quality material and construction. These cutting blades are one reason why sergers are so useful.   

Below, we describe some important details about the knives…

4 Thread Overlock Lower Blade - Pegasus​ #277009-C
Our Price: $6.99  
Bartacking Moving Knife - JUKI #B2421-280-0A0
Our Price: $9.99   Market Price: $38.25
Save: $28.26 per unit
BT Trimmer - JUKI #40004311
Our Price: $139.99  
Buttonhole Knife - Reese #S356N​​
Our Price: $4.50  
Buttonhole Knives - JUKI #B-2702-047-F00
Our Price: $7.99  
Chain Cutter Knife - Pegasus #201308
Our Price: $1.99  
Chain Cutter Knife for Singer #202451​
Our Price: $1.99  
Counter Knife - Juki #D2406-555-DOH
Our Price: $6.99  
Fix Knife - JUKI #B-2424-280-000-SU​
Our Price: $9.99   Market Price: $18.00
Save: $8.01 per unit
Fixed Knife - Brother #S02637-001
Our Price: $12.99  
Fixed Knife - JUKI #213-89309
Our Price: $14.99  
Flat Cutter - JUKI #70000081
Our Price: $174.99  
Industrial Sewing Machine Moving Knife - JUKI #401-32434
Our Price: $83.99  
JUKI - Bobbin Thread Trimmer Blade #B-2406-771-0A0
Our Price: $19.99  
JUKI - Counter Knife - #B-2408-771-000-A
Our Price: $12.99  
Knife - Reese #S356N
Our Price: $5.95  
Knife ST9500 - Avery Dennison #3-05-0027-01
Our Price: $64.50  
Lower Knife - Brother #112436-0-01​​
Our Price: $4.99  
Lower Knife - Brother #X77683-001
Our Price: $6.99  
Lower Knife - Juki #118-46003
Our Price: $2.99  
Lower Knife - JUKI #50145403
Our Price: $18.00   Market Price: $26.00
Save: $8.00 per unit
Lower Knife - JUKI #700-00399
Our Price: $9.99  
Lower Knife - JUKI #B-4118-804-000​
Our Price: $9.99  
Lower Knife - JUKI ​#115-66502​
Our Price: $4.75  
Lower Knife - JUKI​ #131-50701
Our Price: $2.99  
Lower Knife - Pegasus #204161​
Our Price: $2.99  
Lower Knife - Pegasus #350220
Our Price: $27.99  
Lower Knife - Yamato #2100167
Our Price: $3.70  
Lower Knife - Yamato #Y30421​​
Our Price: $2.99  
Lower Knife and Upper Knife Set - JUKI #131-50503 and #131-50701
Our Price: $9.99  
Lower Knife Holder - Pegasus #350023​
Our Price: $72.00  
Moveable Knife - Mitsubishi #MF90B2838
Our Price: $39.99  
Moveable Sewing Machine Knife - Brother #15915-0-01
Our Price: $29.99  
Moving Knife "A" For Bag Closing Machine - NewLong #246061
Our Price: $9.99   Market Price: $18.00
Save: $8.01 per unit
Moving Knife - Brother #S02645-001
Our Price: $12.99  
Moving Knife - JUKI #110-40052
Our Price: $9.99  
Moving Knife - JUKI #213-89200
Our Price: $90.84  
Moving Knife - JUKI #D2423241E00
Our Price: $53.99  
Overlock Serger Upper Knife Carbide Tip -Brother #144074-0-01
Our Price: $9.99  
Overlock Thread Trimmer - JUKI #131-16702
Our Price: $4.99  
Stationary Knife "B" For Bag Closing Machine - Newlong #246071
Our Price: $9.99   Market Price: $18.00
Save: $8.01 per unit
Thread Cutter Knife - JUKI #10502300
Our Price: $16.99  
Thread Trimmer Knife - JUKI #B4001180000​​
Our Price: $8.89  
Thread Trimmer Knife - Reese #20-0094-0-000
Our Price: $8.55  
Upper & Lower Knife Set - Singer #412585, #412749
Our Price: $9.99   Market Price: $19.99
Save: $10.00 per unit
Upper & Lower Knife Set - Singer #412585, #550449
Our Price: $9.99   Market Price: $19.99
Save: $10.00 per unit
Upper Knife - JUKI #115-65900​​
Our Price: $14.99  
Upper Knife - JUKI #118-45708
Our Price: $7.99  
Upper Knife - JUKI #118-45807​​
Our Price: $14.99   Market Price: $39.99
Save: $25.00 per unit
Upper Knife - JUKI #118-45906
Our Price: $9.99  
Upper Knife - JUKI #131-50503
Our Price: $7.99  
Upper Knife - JUKI #50143403
Our Price: $18.00   Market Price: $29.00
Save: $11.00 per unit
Upper Knife - JUKI #700-00229​​
Our Price: $9.99   Market Price: $15.69
Save: $5.70 per unit
Upper Knife - JUKI #B411180400A
Our Price: $15.99  
Upper Knife - Merrow #6-90
Our Price: $6.44  
Upper Knife - Pegasus # 2116621
Our Price: $66.99  
Upper Knife - Pegasus #350218
Our Price: $19.00  
Upper Knife - Pegasus #​306394
Our Price: $19.99  
Upper Knife - Yamato #Y32914​
Our Price: $5.99  
Upper Knife Angled - Brother #S20896-101
Our Price: $15.99  
Upper Knife- Brother #148815-0-01​
Our Price: $14.99  
​Upper Knife - Viking and Brother #XB0563-001​
Our Price: $11.99   Market Price: $19.99
Save: $8.00 per unit

Sewing Machine Knives Q & A

What are Sewing Machine Knives Used for?

The knives can trim the fabric on the serger sewing machines even before the stitches are formed! They are a big reason why your edges acquire that neat, finished look.

What is a Serger?

Haven’t used a serger before? Well, if you haven’t, you should because this type of sewing machine can bind fabric together using an overlock stitch. Several stitches go into the creation of one overlock stitch. Pick up any garment and locate the finishing stitches on them. You are looking at the work of a serger!

Where Can the Knife be Found on the Machine?

The knives are located in the part of a serger that cuts material when it passes through the needle. This allows the knives to match the overcast stitch, and the result is a completely encased edge.

Upper and Lower Sewing Machine Knives

You’ll find that both sets of knives work in combination like the blades on a pair of scissors. The one that resembles an upside-down hook is the upper knife. It moves up and down when the fabric is being cut. You’ll find the lower knife beneath the needle plate. It remains stationary during the cutting.

Adjusting the Knife on Your Serger

If you own a serger, check for a dial on it. It will allow you to adjust the distance on the blades of the knives. Most brands build their sergers along the same lines. When using it for your first sewing project, you may want to test it out on a few pieces of test fabric first. Continue to adjust the blade-width of the sewing machine knives. Do that until you find the setting that produces the look you like.

When You Should Disengage the Knife

When you don’t want the knives to cut off the fabric as you sew, disengage them. This also allows you to put down various kinds of decorative stitches, sew away from the edge, do a topstitch, and apply elastic. Since the lower blades are stationary, you can take out the upper ones.

On the other hand, when engaging the blades, you can control how much fabric they will cut from the edges. In most cases, just a small trim off the edge is enough for regular serging stitches. This gives your sewing a neater and more professional look. Moreover, you won’t have to go back and trim the seam! Therefore, the blades also save you time!

Brands Available on GoldStar Tool at present:

  • Brother
  • Yuki
  • Yamato
  • Pegasus
  • Singer
  • Willcox & Gibbs

Check out GoldStar Tool’s entire inventory of sewing machine knives, and if you don’t know which one you need, give us a call at 1.800.868.4419 or visit us online, and our experts will guide you!