Breakaway Blades

Match your blade to the dimensions.
High-speed steel lasts longer than steel.
Stainless steel resists corrosion.
Dispenser distributes one blade at a time and stores used blades. It can be mounted on a wall.
For technical drawings and 3-D models, click on a part number.
Blade | ||||||||
---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Edge | No. of Segments per Blade | Includes | Pkg. Qty. | Pkg. | |
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | ||||||||
Steel Blade | ||||||||
3 3/16" | 9 mm (0.354") | 0.015" | Straight | 13 | __ | 50 | 00000000 | 000000 |
3 3/8" | 9 mm (0.354") | 0.016" | Straight | 13 | __ | 5 | 0000000 | 0000 |
3 3/8" | 9 mm (0.354") | 0.016" | Straight | 13 | __ | 100 | 00000000 | 00000 |
3 3/8" | 9 mm (0.354") | 0.02" | Straight | 13 | Dispenser | 10 | 00000000 | 0000 |
3 3/8" | 9 mm (0.354") | 0.02" | Straight | 13 | Dispenser | 100 | 000000000 | 00000 |
4 1/4" | 18 mm (0.709") | 0.02" | Straight | 8 | Dispenser | 10 | 00000000 | 0000 |
4 1/4" | 18 mm (0.709") | 0.02" | Straight | 8 | Dispenser | 100 | 000000000 | 00000 |
4 5/16" | 18 mm (0.709") | 0.02" | Straight | 8 | __ | 5 | 0000000 | 0000 |
4 5/16" | 18 mm (0.709") | 0.02" | Straight | 8 | __ | 100 | 00000000 | 00000 |
Stainless Steel Blade | ||||||||
3 3/8" | 9 mm (0.354") | 0.015" | Straight | 13 | __ | 10 | 00000000 | 0000 |
3 3/8" | 9 mm (0.354") | 0.015" | Straight | 13 | __ | 60 | 000000000 | 00000 |
4 3/8" | 18 mm (0.709") | 0.02" | Straight | 8 | __ | 5 | 00000000 | 0000 |
4 3/8" | 18 mm (0.709") | 0.02" | Straight | 8 | __ | 50 | 000000000 | 00000 |
High-Speed Steel Blade | ||||||||
3 7/8" | 18 mm (0.709") | 0.02" | Straight | 8 | __ | 10 | 00000000 | 00000 |
Ultra-Sharp Breakaway Blades

Use on hard-to-cut materials such as Kevlar and rubber. Match your blade to the dimensions.
For technical drawings and 3-D models, click on a part number.
Blade | |||||||
---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Edge | No. of Segments per Blade | Pkg. Qty. | Pkg. | |
For Use On Kevlar, Rubber | |||||||
Steel Blade | |||||||
3 1/8" | 9 mm (0.354") | 0.015" | Straight | 13 | 50 | 00000000 | 000000 |
3 1/8" | 9 mm (0.354") | 0.015" | Straight | 13 | 300 | 000000000 | 000000 |
3 7/8" | 18 mm (0.709") | 0.02" | Straight | 8 | 10 | 00000000 | 0000 |
3 7/8" | 18 mm (0.709") | 0.02" | Straight | 8 | 50 | 00000000 | 00000 |
5" | 25 mm (0.984") | 0.03" | Straight | 7 | 20 | 00000000 | 00000 |
5" | 25 mm (0.984") | 0.03" | Straight | 7 | 120 | 000000000 | 000000 |
Heavy Duty Breakaway Blades

These blades are wider than other breakaway blades to cut through tough materials such as leather, rope, and thick cardboard. Match your blade to the dimensions.
For technical drawings and 3-D models, click on a part number.
Blade | |||||||
---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Edge | No. of Segments per Blade | Pkg. Qty. | Pkg. | |
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | |||||||
Steel Blade | |||||||
5" | 25 mm (0.984") | 0.028" | Straight | 7 | 5 | 00000000 | 00000 |
5" | 25 mm (0.984") | 0.028" | Straight | 7 | 20 | 00000000 | 00000 |
5" | 25 mm (0.984") | 0.028" | Straight | 7 | 30 | 000000000 | 00000 |
5" | 25 mm (0.984") | 0.028" | Straight | 7 | 120 | 000000000 | 000000 |
Breakaway Blades for Multi-Blade Loading Utility Knives

Match your blade to the dimensions.
For technical drawings and 3-D models, click on a part number.
Breakaway-Blade Utility Knives



Auto-lock knife locks the blade in position with the push of a button.
Ratchet with auto-lock knives have a wheel that advances or retracts the blade and locks it in place.
Blade | Handle | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Material | No. of Segments per Blade | No. of Blades Included | Blade Storage Location | Overall Lg. | Material | Color | Grip Texture | Locking Style | Each | ||
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | ||||||||||||||
A | 4 1/4" | 18 mm (0.709") | 0.02" | Steel | 8 | 3 | Handle | 6 1/4" | Plastic | Red | Smooth | Auto | 00000000 | 00000 |
B | 3 7/8" | 18 mm (0.709") | 0.02" | Steel | 8 | 1 | None | 5 3/4" | Plastic | Yellow | Smooth | Ratchet with Auto Lock | 00000000 | 00000 |
C | 5" | 25 mm (0.984") | 0.028" | Steel | 7 | 1 | None | 6 3/4" | Rubber | Yellow | Smooth | Ratchet with Auto Lock | 0000000 | 00000 |
Blade | Handle | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Material | No. of Segments per Blade | No. of Blades Included | Blade Storage Location | Overall Lg. | Material | Color | Grip Texture | Locking Style | Pkg. Qty. | Pkg. | ||
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | |||||||||||||||
A | 4 1/4" | 18 mm (0.709") | 0.02" | Steel | 8 | 3 | Handle | 6 1/4" | Plastic | Red | Smooth | Auto | 10 | 000000000 | 000000 |
B | 3 7/8" | 18 mm (0.709") | 0.02" | Steel | 8 | 1 | None | 5 3/4" | Plastic | Yellow | Smooth | Ratchet with Auto Lock | 6 | 000000000 | 00000 |
C | 5" | 25 mm (0.984") | 0.028" | Steel | 7 | 1 | None | 6 3/4" | Rubber | Yellow | Smooth | Ratchet with Auto Lock | 6 | 00000000 | 00000 |
Stanley Breakaway-Blade Utility Knives

This manual-lock knife has a sliding lock to hold the blade in place.
Blade | Handle | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Lg. | Wd. | Thick. | Material | No. of Segments per Blade | No. of Blades Included | Blade Storage Location | Overall Lg. | Material | Color | Grip Texture | Locking Style | Each | |
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | ||||||||||||||
10-143P | 4 1/4" | 18 mm (0.709") | 0.02" | Steel | 8 | 1 | None | 6" | Plastic | Yellow | Ribbed | Manual | 0000000 | 00000 |
Blade | Handle | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Lg. | Wd. | Thick. | Material | No. of Segments per Blade | No. of Blades Included | Blade Storage Location | Overall Lg. | Material | Color | Grip Texture | Locking Style | Pkg. Qty. | Pkg. | |
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | |||||||||||||||
10-143P | 4 1/4" | 18 mm (0.709") | 0.02" | Steel | 8 | 1 | None | 6" | Plastic | Yellow | Ribbed | Manual | 30 | 00000000 | 000000 |
Replacement Blades (10/Pkg.) | 00000000 | Pkg. | 00000 |
Slim Breakaway-Blade Utility Knives


Use the narrow blades on these knives to cut in tight spaces. The blade locks in position with the push of a button.
Stainless steel is corrosion resistant.
Blade | Handle | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Material | No. of Segments per Blade | No. of Blades Included | Blade Storage Location | Overall Lg. | Material | Color | Grip Texture | Each | |
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | ||||||||||||
3 3/8" | 9 mm (0.354") | 0.015" | Stainless Steel | 13 | 1 | None | 5 3/8" | Stainless Steel | __ | Smooth | 0000000 | 000000 |
3 3/8" | 9 mm (0.354") | 0.016" | Steel | 13 | 3 | Handle | 5 1/2" | Plastic | Red | Smooth | 00000000 | 0000 |
Blade | Handle | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Material | No. of Segments per Blade | No. of Blades Included | Blade Storage Location | Overall Lg. | Material | Color | Grip Texture | Pkg. Qty. | Pkg. | |
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | |||||||||||||
3 3/8" | 9 mm (0.354") | 0.015" | Stainless Steel | 13 | 1 | None | 5 3/8" | Stainless Steel | __ | Smooth | 6 | 000000000 | 000000 |
3 3/8" | 9 mm (0.354") | 0.016" | Steel | 13 | 3 | Handle | 5 1/2" | Plastic | Red | Smooth | 10 | 000000000 | 00000 |
Slim Breakaway-Blade Utility Knives with Cushion Insert
Prevent slipping and get a comfortable hold while working in tight spaces—this knife has a rubber insert in the handle and a narrow blade. Blade is corrision-resistant stainless steel and locks in place with the push of a button.

Blade | Handle | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Material | No. of Segments per Blade | No. of Blades Included | Blade Storage Location | Overall Lg. | Material | Color | Grip Texture | Locking Style | Each | |
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | |||||||||||||
3 3/8" | 9 mm (0.354") | 0.016" | Stainless Steel | 13 | 3 | None | 5 1/2" | Rubber | Yellow and Black | Smooth | Auto | 0000000 | 00000 |
Blade | Handle | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Material | No. of Segments per Blade | No. of Blades Included | Blade Storage Location | Overall Lg. | Material | Color | Grip Texture | Locking Style | Pkg. Qty. | Pkg. | |
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | ||||||||||||||
3 3/8" | 9 mm (0.354") | 0.016" | Stainless Steel | 13 | 3 | None | 5 1/2" | Rubber | Yellow and Black | Smooth | Auto | 10 | 00000000 | 000000 |
Carton-Cutting Breakaway-Blade Utility Knives

Cut cardboard boxes without damaging the contents. This knife has a depth-cutting guide and a staple puller. Turn the wheel to advance or retract the blade and lock it in place.
Blade | Handle | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Material | No. of Segments per Blade | No. of Blades Included | Blade Storage Location | Overall Lg. | Material | Color | Grip Texture | Locking Style | Each | |
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | |||||||||||||
1 3/4" | 18 mm (0.709") | 0.024" | Steel | 8 | 1 | None | 5 3/4" | Plastic | Yellow | Smooth | Ratchet with Auto Lock | 00000000 | 000000 |
Blade | Handle | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Material | No. of Segments per Blade | No. of Blades Included | Blade Storage Location | Overall Lg. | Material | Color | Grip Texture | Locking Style | Pkg. Qty. | Pkg. | |
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | ||||||||||||||
1 3/4" | 18 mm (0.709") | 0.024" | Steel | 8 | 1 | None | 5 3/4" | Plastic | Yellow | Smooth | Ratchet with Auto Lock | 6 | 000000000 | 000000 |
Breakaway-Blade Utility Knives with Cushion Insert
A rubber insert provides a comfortable, slip-resistant grip. The blade is corrosion-resistant stainless steel. It locks in position with the push of a button.

Blade | Handle | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Material | No. of Segments per Blade | No. of Blades Included | Overall Lg. | Material | Color | Grip Texture | Locking Style | Each | |
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | ||||||||||||
4 3/8" | 18 mm (0.709") | 0.02" | Stainless Steel | 8 | 3 | 6 1/2" | Rubber | Yellow and Black | Smooth | Auto | 0000000 | 000000 |
Blade | Handle | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Material | No. of Segments per Blade | No. of Blades Included | Overall Lg. | Material | Color | Grip Texture | Locking Style | Pkg. Qty. | Pkg. | |
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | |||||||||||||
4 3/8" | 18 mm (0.709") | 0.02" | Stainless Steel | 8 | 3 | 6 1/2" | Rubber | Yellow and Black | Smooth | Auto | 10 | 00000000 | 000000 |
Chemical Resistant Breakaway-Blade Utility Knives

The handle is chemical-resistant rubber to resist acetone and solvents. Turn the wheel to advance or retract the blade and lock it in place.
For technical drawings and 3-D models, click on a part number.
Blade | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Material | No. of Segments per Blade | No. of Blades Included | Blade Storage Location | Overall Lg. | Handle Material | Handle Type | Grip Texture | Locking Style | Each | |
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | |||||||||||||
4" | 18 mm (0.709") | 0.02" | Steel | 8 | 1 | None | 6 1/4" | Rubber | Straight | Smooth | Ratchet with Auto Lock | 00000000 | 000000 |
Blade | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Material | No. of Segments per Blade | No. of Blades Included | Blade Storage Location | Overall Lg. | Handle Material | Handle Type | Grip Texture | Locking Style | Pkg. Qty. | Pkg. | |
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | ||||||||||||||
4" | 18 mm (0.709") | 0.02" | Steel | 8 | 1 | None | 6 1/4" | Rubber | Straight | Smooth | Ratchet with Auto Lock | 6 | 000000000 | 000000 |
Breakaway-Blade Utility Knives with Multi-Blade Loading
Load six blades at once for quick blade changes.

Blade | Handle | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Material | No. of Segments per Blade | No. of Blades Included | Blade Storage Location | Overall Lg. | Material | Color | Type | Grip Texture | Locking Style | Each | |
For Use On Cardboard, Cork, Fabric, Leather, Paper, Rubber | ||||||||||||||
4 1/2" | 18 mm (0.709") | 0.02" | Steel | 8 | 3 | Handle | 6" | Plastic | Yellow | Straight | Smooth | Auto | 0000000 | 000000 |
Blade | Handle | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Material | No. of Segments per Blade | No. of Blades Included | Blade Storage Location | Overall Lg. | Material | Color | Type | Grip Texture | Locking Style | Pkg. Qty. | Pkg. | |
For Use On Cardboard, Cork, Fabric, Leather, Paper, Rubber | |||||||||||||||
4 1/2" | 18 mm (0.709") | 0.02" | Steel | 8 | 3 | Handle | 6" | Plastic | Yellow | Straight | Smooth | Auto | 6 | 00000000 | 0000000 |
Retracting Razor-Blade Utility Knives with Breakaway Blades

Knives | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Blade | Replacement Blades | ||||||||||||||
Lg. | Wd. | Thick. | Material | No. of Segments per Blade | No. of Blades Included | Blade Storage Location | Closed Lg. | Handle Material | Handle Type | Grip Texture | Each | Pkg. Qty | Pkg. | ||
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | |||||||||||||||
3 1/2" | 3/4" | 0.012" | Steel | 6 | 1 | None | 4 1/8" | Metal | Straight | Smooth | 00000000 | 00000 | 5 | 00000000 | 00000 |
Precision Knives with Breakaway Blades

Blade | Handle | Each | Package | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Edge | No. of Segments per Blade | Blades Replaceable | Material | Lg. | Wd. | Overall Lg. | Locking Style | Each | Pkg. Qty. | Pkg. | ||
For Use On Cardboard, Cork, Fabric, Leather, Paper, Plastic, Rubber | |||||||||||||||
Steel Blade | |||||||||||||||
3 1/8" | 3/8" | 0.015" | Straight | 7 | Yes | Stainless Steel | 5 1/4" | 7/16" | 5 3/8" | Manual | 0000000 | 000000 | 6 | 00000000 | 000000 |
Utility-Knife Style Circular Gasket and Hole Cutters

When the blade gets dull, snap it off to expose a new, sharp edge. This cutter has a utility knife mounted on a radius bar for precise cuts.