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Rotary cutter OLFA RTY-4, 18 mm

Art. no. SRTY-4

At a glance

Rotary cutter with an 18 mm round blade
Cutting depth 4 mm
Blade change possible

7.99€ net · excl. VAT

Prices in EUR, net – for business customers only. Shipping: €14 flat rate within Europe, free of charge from €300 goods value (Shipping costs, in German) · Delivery time on request

Quantity discount	net / pc.
from 20 pcs. (−3 %)	7.75€
from 50 pcs. (−6 %)	7.51€

Request a quote by email Order in our German online shop

or call us: +49 (0) 211 / 97174619

RTY-4 – small rotary cutter with an 18 mm blade and blade guard

18 mm round blade | 4 mm cutting depth | blade change without tools

The OLFA RTY-4 is the smallest rotary cutter in the OLFA range at CURT, with an 18 mm round blade. The blade made of premium carbon steel has high initial sharpness and long edge life, and the cutting depth is 4 mm.

You slide the blade guard over the blade by hand, and you change the blade without tools. The straight plastic handle is suitable for left- and right-handed users and has an eyelet for hanging. The manufacturer is OLFA.

Applications & cutting materials

Which materials is this knife made for — and where does it reach its limits?

Particularly suitable

Foam materials

Suitable

Adhesive tape

Rubber

Not suitable Cardboard – lids/flaps · Cardboard – cutting to size · Cardboard – octabins · Stretch film · Free-hanging film/paper web · Bags/pouches · Sticking on rolls · Stripping the outer layer of rolls · Opening blister packs · Strapping · Opening film/paper sacks · Big bags · Polystyrene (EPS)

Knife know-how

Further features

Safety

Transport lock

Prevents the blade from extending by accident in a pocket or tool case.

Without snap-off segments

Continuous blade without predetermined breaking points, no risk of a segment breaking off uncontrolled.

Few mounting holes

Fewer blade mounting holes mean fewer predetermined breaking points under lateral force, and a lower risk of uncontrolled breakage.

Handle & ergonomics

Ergonomic design

The handle shape is designed around the hand position when cutting and reduces fatigue with repeated use.

Left- and right-handed

Can be used with either hand, with or without conversion depending on the model, equally suitable for left- and right-handed users.

Weight < 50 g

Feather-light, barely noticeable when carried all day, for example on a belt or in the hand. This model weighs 20 g.

Blade

Premium carbon steel

Refined alloy with even better edge retention, for particularly demanding continuous use.

Uncoated

Constant basic sharpness without coating wear, cost-efficient and proven. The most economical choice for standard applications.

High initial sharpness

Especially sharp from the first cut, ideal when maximum cutting performance is needed immediately.

Long edge life

Much longer service life until the next blade change than standard blades. Reduces change intervals and blade consumption in intensive use.

Special features

Tool-free blade change

Insert a new blade without tools, done in seconds.

Eyelet

For attaching to a belt, carabiner or lanyard so the knife stays within easy reach.

Knife type: Other

Special tool for a specific application, see technical data for details.

Technical data

Safety level: Level 0
Handle material: Plastic
Blade type: Round blade 18 mm (RB18)
Max. cutting depth (mm): 4 mm
Blade change: Yes - tool-free
Suitable for left-handed users: Yes
Eyelet: Yes
Blade diameter (mm): 18 mm
Blade guard: Slider
Handle type: straight
Dimensions (L×W×H) mm: 140 × 20 × 8
Weight (g): 20
Packaging unit: 1 - in a blister
Certificate: none
Article number: SRTY-4

Weight 20 g

Featherweight Pro Heavy

Size

Mini Standard Very large

Downloads & blade change

Technical data sheet for printing.

SRTY-4 Technical data sheet

Technical data, blade change instructions and safety notes – DIN A4

Download →

Replacement blades

The matching replacement blade is the OLFA round blade with a diameter of 18 mm (KRB18).

Round blade 18 mmCarbon steelplain grind4.81€ net

View KRB18

Alternatives

Rotary cutters with a larger blade: 28 mm (SRTY-1), 45 mm (SRTY-2-G) and 60 mm (SRTY-3). The H45C film knife has the same 45 mm blade as the SRTY-2-G.

RTY-1 28 mmRotary cutters28 mm bladeBlade change possible11.06€ net

View SRTY-1 RECOMMENDED

RTY-2/G 45 mmRotary cutter 45 mmStandard handleBlade change possible13.20€ net

View SRTY-2-G

RTY-3G 60 mmRotary cutters60 mm bladeBlade change possible13.83€ net

View SRTY-3 RECOMMENDED

45-C – Rotary cutterRotary cutters45 mm bladeBlade change possible19.45€ net

View H45C

Accessories

Useful accessories for knives and blades.

Blade boxes

for dull blades
special closure
in 4 sizes

Choose

Lanyards

“lanyard”
extra strong
up to 120 cm long

Choose

Cutting rulers

with steel edge
high quality
with finger guard

Choose

Belt pouches

knife pouch
in 3 sizes
reinforced seams

Choose

Notes

OLFA CORPORATION – 2-11-8 Higashinakamoto – Higashinari-ku – Osaka 537-0021 – Japan
View all OLFA products →
Contact in the EU:
C-URT GmbH · Ikenstr. 47
40625 Düsseldorf · direkt@curt-tools.com

Safety notice

This knife is a sharp working tool. Use only as intended. Keep out of the reach of children. Wear suitable protective gloves if necessary. Replace blades safely in accordance with the blade change instructions – do not make any improper modifications.