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Home/OLFA/Blades/OLFA RSKB Round Tip Dual-Edge Safety Blade for SK-4, SK-6 & SK-9 Knives - 10/50 Packs
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Blades
OLFA RSKB Round Tip Dual-Edge Safety Blade for SK-4, SK-6 & SK-9 Knives - 10/50 Packs
4.5 (8)
$10.49$10.00
OLFA RSKB round tip dual-edge safety blades minimize tip breaks and punctures while doubling blade life in SK-4, SK-6, and SK-9 knives, at $10.00 (down from $10.49) online at Cutter's Bench.
In Stock
Size
Size
RSKB-2/10B
RSKB-2/50B
-
1
+
Get it in 3–5 business days.
22 people are viewing this item.19 sold today.Only 4 left in stock.
OLFA RSKB Round Tip Dual-Edge Safety Blades: $10.00 Online
Buy the OLFA RSKB Round Tip Dual-Edge Safety Blades at Cutter's Bench for $10.00 — a discount off the $10.49 compare-at price. These rounded-tip replacement blades are made for anyone cutting boxes and packaged goods where puncturing the contents is a risk. Use coupon BENCH10 for an extra 10% savings.
Which OLFA Safety Knives Use RSKB Blades?
RSKB blades fit the OLFA SK-4, SK-6, and SK-9 semi-automatic self-retracting safety knives. The rounded tip slides under shrink wrap and tape without stabbing carton contents — the standard choice for food-safe and damage-sensitive environments.
Specifications
Brand: OLFA
Model: RSKB
Blade type: Rounded tip, dual-edge
Material: Premium carbon tool steel
Pack sizes: 10 or 50
Edges per blade: 2
RSKB 10-Pack vs 50-Pack
The 10-pack suits individual users; the 50-pack offers the lowest per-blade price for facilities. Either way you pay $10.00 at sale pricing before coupon BENCH10 savings.
Why Round Tip vs Standard Tip?
Standard tips puncture contents under the cut and snap at the point. RSKB's rounded tip minimizes tip breaks and reduces punctures, extending usable life and protecting products — a direct alternative to standard SKB blades when damage prevention matters.
Price & Deal Value
$10.00 on sale with coupon BENCH10 for 10% more off, plus free shipping on orders over $45.00. Buy your RSKB replacement blades online today.
Features
Rounded tip minimizes tip breaks and punctures to contents under the cut
Dual-edge carbon tool steel design doubles cutting life per blade
$10.00 sale price with coupon BENCH10 for extra 10% savings
Model: RSKB
Best For: Box opening, shrink wrap, damage-sensitive cutting
Material: Premium carbon tool steel
Blade Type: Rounded tip, dual-edge
Pack Sizes: 10 or 50
Product Type: Round Tip Dual-Edge Safety Knife Blades
The rounded tip of the OLFA RSKB blade slides under tape and shrink wrap while the dual edges of carbon tool steel double the cutting life. It's the affordable safety upgrade for SK-4, SK-6, and SK-9 knife owners.
Buying Guide
Choose RSKB round tip when contents must stay undamaged; choose SKB-2 standard tip when deep cuts matter most. At $10.00 with BENCH10 coupon savings, keeping spares on hand costs almost nothing.
Savings
Sale pricing, coupon BENCH10, and free shipping over $45.00 — buy online at Cutter's Bench now.
Frequently Asked Questions
Which OLFA safety knives use RSKB blades?
The OLFA SK-4, SK-6, and SK-9 semi-automatic self-retracting safety knives all accept RSKB round tip blades.
What is an OLFA RSKB blade used for?
Cutting boxes, shrink wrap, and tape without puncturing the contents — ideal for retail, food processing, and warehouse use.
How much do RSKB blades cost?
$10.00 on sale (compare at $10.49) for 10 or 50 packs, with coupon BENCH10 adding 10% off.
How do I replace an RSKB blade in an OLFA safety knife?
Open the blade compartment on your SK-4, SK-6, or SK-9, remove the old blade, seat the RSKB fully, and close. Flip to use the second edge first.
RSKB 10 pack or 50 pack — which is the better deal?
Both are $10.00 here, so the 50-pack is the strongest per-blade value. Add BENCH10 coupon savings and free shipping over $45.00.
4.5★★★★★★★★★★(8)
5 ★5
4 ★2
3 ★1
2 ★0
1 ★0
Customer Reviews
8
★★★★★★★★★★5.0
r*u
Verified
No more broken tips
I can't count how many standard safety blades I've snapped at the tip cutting against hard surfaces. These round tip blades just don't break that way. Still cut boxes cleanly too. The dual edge doubles the usable life so a 10 pack goes a long way.
★★★★★★★★★★5.0
n***j
Verified
Great for busy stockroom
We cut hundreds of cartons a week and these blades hold up beautifully. The rounded tip means no accidental punctures into product underneath the box flaps. Zero complaints from the crew.
★★★★★★★★★★4.0
r****z
Verified
Safe and sharp
Bought these for my SK-6 after one too many near-misses with pointed blades. The round tip cuts carton tape and cardboard just fine while dramatically lowering the pucker factor. Slight tradeoff in fine-cut precision but that's expected and worth it.
★★★★★★★★★★5.0
u***r
Verified
Lasts twice as long, seriously
Dual edge means flip and keep going. Genuinely doubles the working life compared to my old single-edge blades. For $10 this pack paid for itself in a month. Cutter's Bench shipping was quick.
★★★★★★★★★★3.0
x***j
Verified
Works well, not magic
These are good blades and the round tip does reduce tip breaks like advertised. But on very thick triple-wall cardboard they require a bit more passes than a pointed blade. Still recommend for general box work and safety.
★★★★★★★★★★5.0
j*****r
Verified
Exactly what I hoped for
Sharp, safe, and long-lasting. Perfect fit.
★★★★★★★★★★4.0
e****d
Good value for the pack size
Ten blades at this price with OLFA quality is fair. They fit my SK-9 perfectly and the edge holds up through heavy use. The round tip design gives me real peace of mind working around packaged goods.
★★★★★★★★★★5.0
n***t
Verified
Best blade for our art department
We use safety knives on everything from foam board to shrink wrap and these round tip blades handle it all without gouging surfaces. Students and staff alike feel safer. I restock these every semester without hesitation.
