Snap-Off Knives | McMaster-Carr

	Blade Width Blade Width

9 mm (0.354")

18 mm (0.709")

25 mm (0.984")

	Blade Length Blade Length

	Handle Color Handle Color

	Yellow
	Red
	Yellow and Black

	Handle Type Handle Type

	Straight
	Curved

	Handle Material Handle Material

Plastic

Rubber

Stainless Steel

	Overall Length Overall Length

	For Use On For Use On

	Blade Material Blade Material

Steel

Stainless Steel

	Blade Storage Location Blade Storage Location

None

Handle

	Number of Segments per Blade Number of Segments per Blade

	Locking Style Locking Style

Auto

Manual

Ratchet with Auto Lock

	For Cutting For Cutting

	Number of Blades Included Number of Blades Included

	Blade Thickness Blade Thickness

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Grip Texture Grip Texture

Smooth

Ribbed

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Manufacturer Model Number Manufacturer Model Number

35 Products

Stanley Breakaway-Blade Utility Knives

This manual-lock knife has a sliding lock to hold the blade in place.

Each

	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

Package

	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 (5/Pkg.)

0000000

Pkg.

00000

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.

Each

	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

Package

	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

Replacement Blades for Style C (30/Pkg.)	000000000	Pkg.	000000
Replacement Blades for Style C (5/Pkg.)	00000000	Pkg.	0000
Replacement Blades for Styles A and B (100/Pkg.)	00000000	Pkg.	00000
Replacement Blades for Styles A and B (5/Pkg.)	0000000	Pkg.	0000

Slim Breakaway-Blade Utility Knives

Steel Blade

Stainless Steel Blade

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.

Each

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")	0.016"	Steel	13	3	Handle	5 1/2"	Plastic	Red	Smooth	00000000	00000
3 7/8"	9 mm (0.354")	0.02"	Stainless Steel	13	1	None	5 3/8"	Stainless Steel	__	Smooth	0000000	00000

Package

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")	0.016"	Steel	13	3	Handle	5 1/2"	Plastic	Red	Smooth	10	000000000	000000
3 7/8"	9 mm (0.354")	0.02"	Stainless Steel	13	1	None	5 3/8"	Stainless Steel	__	Smooth	6	000000000	00000

Replacement Steel Blades (100/Pkg.)	00000000	Pkg.	000000
Replacement Steel Blades (5/Pkg.)	0000000	Pkg.	0000
Replacement Stainless Steel Blades (10/Pkg.)	00000000	Pkg.	0000
Replacement Stainless Steel Blades (60/Pkg.)	000000000	Pkg.	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.

Each

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

Package

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

Replacement Blades (60/Pkg.)	000000000	Pkg.	000000
Replacement Blades (10/Pkg.)	00000000	Pkg.	0000

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.

Each

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

Package

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

Replacement Blades (5/Pkg.)	0000000	Pkg.	00000
Replacement Blades (100/Pkg.)	00000000	Pkg.	00000

Breakaway-Blade Utility Knives with Multi-Blade Loading

Load six blades at once for quick blade changes.

Each

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

Package

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

Replacement Blades (5/Pkg.)	0000000	Pkg.	00000
Replacement Blades (50/Pkg.)	00000000	Pkg.	00000

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.

Each

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

Package

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

Replacement Blades (50/Pkg.)	000000000	Pkg.	000000
Replacement Blades (5/Pkg.)	00000000	Pkg.	0000

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.

Each

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

Package

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

Replacement Blades (50/Pkg.)	000000000	Pkg.	000000
Replacement Blades (5/Pkg.)	00000000	Pkg.	0000

Breakaway Blades

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
4 1/4"	18 mm (0.709")	0.02"	Straight	8	5	0000000	00000