Cutters, Knives & Blades

 

A utility knife is only as good as the blade in it, and the blade you need depends on the job. Start with width: 9mm for trimming and craft, 18mm for everyday boxes and packaging, 25mm for thick card, carpet and repeated carton work. Then decide how it locks and whether you need a safety knife that pulls the blade back on its own. We stock Tajima, Fiskars, Scotch, Keen and Celco, and the matching replacement blades for all of them.

For most box and packaging work an 18mm snap-off utility knife is the right call. Drop to 9mm for light trimming and craft, and go up to 25mm for thick card, carpet or repeated heavy cartons.

The blade is scored into segments. When the tip goes dull you snap off the front segment with pliers or the snapper built into the cap, which exposes a fresh sharp edge. One blade lasts through several segments before you replace it.

Match the code, not just the width. 9mm knives take LCB30, 18mm take LCB50 and 25mm take LCB65. Safety knives like the Tajima LC959 use their own CB-series blades. The code is on the original blade pack or stamped on the knife.

An auto-retract knife exposes the blade only while you hold the slider, then snaps it back inside when you let go. A concealed knife never exposes the edge at all; the blade sits hidden in a guide and cuts the carton from the inside. Concealed is the safest around product, auto-retract is more versatile for general cutting.

Start with the blade width

9mm: the small one. Light trimming, craft work, opening packaging without burying the blade.

18mm: the standard box cutter. Cartons, packaging and general office cutting. This is the one most people want.

25mm: heavy duty. Thick card, carpet, underlay and high-volume carton work where a thinner blade would flex.

Safety knives: auto-retract or concealed blade for dispatch and warehouse areas with health and safety rules.

Once you've picked the knife, grab the replacement blades that fit it. The code on the pack has to match the knife.

Marbig Large Knife / Cutter AO975155
Marbig Large Knife / Cutter
$4.39 inc. GST or as low as $4.00
QTY inc. GST
1-5 $4.39
6-11 $4.22
12-23 $4.13
24+ $4.00
FREE Delivery over $30. Dispatch as early as Monday from Auckland.
Marbig Large Knife / Cutter AO975165B
Marbig Large Knife / Cutter
$7.19 inc. GST or as low as $6.55
QTY inc. GST
1-5 $7.19
6-11 $6.91
12-23 $6.76
24+ $6.55
FREE Delivery over $30. Dispatch as early as Monday from Auckland.
Fiskars Cutter Knife Straight Cutting 18mm CXFK1390
Fiskars Cutter Knife Straight Cutting 18mm
$6.39 inc. GST or as low as $5.88
QTY inc. GST
1-5 $6.39
6-11 $6.20
12-23 $6.08
24+ $5.88
FREE Delivery over $30. Dispatch as early as today from Hastings or Auckland.
Fiskars 18mm Utility Knife Blades - 10's Pack CXFK1392
Fiskars 18mm Utility Knife Blades - 10's Pack
$7.99 inc. GST or as low as $7.36
QTY inc. GST
1-5 $7.99
6-11 $7.76
12-23 $7.60
24+ $7.36
FREE Delivery over $30. Dispatch as early as today from Hastings or Auckland.
Marbig Large Knife / Cutter with Locking Wheel AO975170B
Marbig Large Knife / Cutter with Locking Wheel
$7.49 inc. GST or as low as $6.82
QTY inc. GST
1-5 $7.49
6-11 $7.20
12-23 $7.05
24+ $6.82
FREE Delivery over $30. Dispatch as early as Monday from Auckland.
Scotch Titanium Snap-Off Utility Knife / Cutter - Large (Code #TI-KL) FP10659
Scotch Titanium Snap-Off Utility Knife / Cutter - Large (TI-KL)
$12.99 inc. GST or as low as $11.05
QTY inc. GST
1-2 $12.99
3-5 $12.09
6-11 $11.57
12+ $11.05
FREE Delivery over $30. Dispatch as early as today from Auckland. Pick up in 2-4 hours.
Fiskars Heavy Duty Craft Knife, Die Cast CXFK167110-1001
Fiskars Heavy Duty Craft Knife, Die Cast
$19.49 inc. GST or as low as $17.16
QTY inc. GST
1-2 $19.49
3-5 $18.52
6-11 $18.13
12+ $17.16
FREE Delivery over $30. Dispatch as early as today from Hastings or Auckland.
Tajima LCB50 Knife / Cutter Blades x 50 CXLCB5050
Tajima LCB50 Knife / Cutter Blades x 50
$52.59 inc. GST or as low as $48.39
QTY inc. GST
1 $52.59
2-5 $51.02
6-11 $49.97
12+ $48.39
FREE Delivery. Dispatch as early as today from Hastings or Auckland.
Tajima LC959 Auto-Retract Safety Knife / Cutter CXLC959C
Tajima LC959 Auto-Retract Safety Knife / Cutter
$17.65 inc. GST or as low as $16.24
QTY inc. GST
1-2 $17.65
3-5 $17.13
6-11 $16.77
12+ $16.24
FREE Delivery over $30. Dispatch as early as today from Hastings or Auckland.
Fiskars 18mm Safety Cutter Knife, Self Retracting CXFK1393C
Fiskars 18mm Safety Cutter Knife, Self Retracting
$9.79 inc. GST or as low as $9.01
QTY inc. GST
1-5 $9.79
6-11 $9.50
12-23 $9.31
24+ $9.01
FREE Delivery over $30. Dispatch as early as today from Hastings or Auckland.
Fiskars Scissors - Cuts & More CXFK1005692
Fiskars Scissors - Cuts & More
$48.85 inc. GST or as low as $44.95
QTY inc. GST
1-2 $48.85
3-5 $47.39
6-11 $46.41
12+ $44.95
FREE Delivery. Dispatch as early as today from Hastings or Auckland.
Tajima LC360 Slide Lock Knife / Cutter CXLC360C
Tajima LC360 Slide Lock Knife / Cutter
$13.99 inc. GST or as low as $12.88
QTY inc. GST
1-5 $13.99
6-11 $13.58
12-23 $13.30
24+ $12.88
FREE Delivery over $30. Dispatch as early as today from Hastings or Auckland.
Scotch Utility Knife TI-KS 9mm Small White FP10660
Scotch Utility Knife TI-KS 9mm Small White
$8.25 inc. GST or as low as $7.02
QTY inc. GST
1-2 $8.25
3-5 $7.68
6-11 $7.35
12+ $7.02
FREE Delivery over $30. Dispatch as early as today from Auckland. Pick up in 2-4 hours.
Fiskars Replacement 9mm Cutting Knife Blades, 10 Pack CXFK1391
Fiskars Replacement 9mm Cutting Knife Blades, 10 Pack
$6.29 inc. GST or as low as $5.79
QTY inc. GST
1-2 $6.29
3-5 $6.11
6-11 $5.98
12+ $5.79
FREE Delivery over $30. Dispatch as early as today from Hastings or Auckland.
Tajima LC302 Screw Lock Knife / Cutter CXLC302C
Tajima LC302 Screw Lock Knife / Cutter
$12.19 inc. GST or as low as $11.22
QTY inc. GST
1-5 $12.19
6-11 $11.83
12-23 $11.59
24+ $11.22
FREE Delivery over $30. Dispatch as early as today from Hastings or Auckland.
Tajima LC510 Slide Lock Knife / Cutter CXLC510
Tajima LC510 Slide Lock Knife / Cutter
$8.99 inc. GST or as low as $8.28
QTY inc. GST
1-5 $8.99
6-11 $8.73
12-23 $8.55
24+ $8.28
FREE Delivery over $30. Dispatch as early as today from Hastings or Auckland.
Tajima Heavy Duty Knife / Cutter CXLC650RH
Tajima Heavy Duty Knife / Cutter
$28.99 inc. GST or as low as $26.68
QTY inc. GST
1-2 $28.99
3-5 $28.13
6-11 $27.55
12+ $26.68
FREE Delivery over $30. Dispatch as early as today from Hastings or Auckland.
Tajima LCB50 Knife / Cutter Blades x 10 Solid Case Pack CXLCB50SOLID
Tajima LCB50 Knife / Cutter Blades x 10 Solid Case Pack
$14.99 inc. GST or as low as $13.80
QTY inc. GST
1-2 $14.99
3-5 $14.55
6-11 $14.25
12+ $13.80
FREE Delivery over $30. Dispatch as early as today from Hastings or Auckland.
Tajima LCB10A Knife / Cutter Blades CXLCB10A
Tajima LCB10A Knife / Cutter Blades
$11.69 inc. GST or as low as $10.76
QTY inc. GST
1-2 $11.69
3-5 $11.34
6-11 $11.11
12+ $10.76
FREE Delivery over $30. Dispatch as early as today from Hastings or Auckland.
Tajima LC560 Heavy Duty Slide-Lock Knife / Cutter CXLC560C
Tajima LC560 Heavy Duty Slide-Lock Knife / Cutter
$22.35 inc. GST or as low as $20.57
QTY inc. GST
1-2 $22.35
3-5 $21.68
6-11 $21.24
12+ $20.57
FREE Delivery over $30. Dispatch as early as today from Hastings or Auckland.
Tajima CB93H Safety Knife Blades 10's pack CXCB93H
Tajima CB93H Safety Knife Blades 10's pack
$9.39 inc. GST or as low as $8.64
QTY inc. GST
1-2 $9.39
3-5 $9.11
6-11 $8.93
12+ $8.64
FREE Delivery over $30. Dispatch as early as today from Hastings or Auckland.
Fiskars Desktop Universal Scissors Sharpener CXFK198620
Fiskars Desktop Universal Scissors Sharpener
$29.39 inc. GST or as low as $26.46
QTY inc. GST
1-11 $29.39
12-23 $28.51
24-47 $27.63
48+ $26.46
FREE Delivery over $30. Dispatch as early as today from Hastings or Auckland.
showing 1 to 24 of 105 products

Snap-off utility knives: which width

Snap-off blades keep a sharp edge without sharpening. When the tip dulls you snap off a segment with pliers or the snapper on the cap, and you're cutting clean again. The width sets what the knife can handle:

  • 9mm light duty. Trimming paper and film, craft and hobby work, scoring, opening soft packaging.
  • 18mm general duty. The everyday box cutter for cartons, strapping and packaging. The most common size in any office or stockroom.
  • 25mm heavy duty. Thick card, multi-wall cartons, carpet and underlay, and any job where you lean on the blade.

How the blade locks

The locking mechanism decides how far the blade extends and how firmly it stays put:

  • Slide lock (Tajima LC series). Push the slider up, it ratchets and holds. Quick to extend, easy one-handed use.
  • Screw lock (Tajima DC and LC501). A thumbwheel clamps the blade solid with no wobble. Best for heavy or precise cuts.
  • Auto lock (Celco, Keen). The blade locks at each notch on its own as you slide it out.

Safety knives for dispatch and warehouse

If knives are used around stock or in a team with health and safety rules, a safety knife reduces the chance of a cut:

  • Auto-retract (Tajima LC959, VR103, Fiskars self-retracting). You hold the slider to cut, let go and the blade springs straight back inside the body. It can't be left open on a bench.
  • Concealed blade (Cutsafe Kingfisher). The blade sits hidden inside a guide and cuts cartons and strapping without an exposed edge, so it can't nick the product or your hand.
  • Carton and package openers (Keen KSCO, Fiskars). Short hooked blades sized to slit tape and open boxes and nothing more.

Craft and precision knives

For fine work we stock scalpel-style art knives that take pointed No.10, No.11 and No.16 blades, fingertip craft knives for detail, and Fiskars precision carving and rotary tools for paper, card and vinyl.

Matching replacement blades to your knife

Replacement blades come in coded packs, and the code has to match the knife. Use this as a starting guide:

Knife / width Blade code Notes
9mm snap-off LCB30 Small trimming and craft knives
18mm snap-off LCB50 Standard box cutters
25mm snap-off LCB65 Heavy-duty cutters
Tajima LC959 safety CB93H Safety blades, not interchangeable with snap-off
Tajima V-Rex cutters VRB / VRB2 Pointed dual-edge blades

Blades sell in packs from 5 up to 100, so a busy bench can stock up once. If you're not sure which blade fits an older knife, the code is usually stamped on the slider or printed on the original pack.

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