DeSoutter 19730 — Zirconium Nitride Segmented Cast Saw Blade 64mm (5-Pack)
The DeSoutter 19730 is a 64mm Zirconium Nitride (ZrN) coated segmented replacement cast saw blade for the DeSoutter CleanCast CC7 and CC8 systems, sold in a 5-pack. Combining the heat-reducing advantages of a segmented blade geometry with the ultra-hard ZrN coating — approximately 50% harder than Titanium Nitride — the 19730 delivers faster cast removal, lower heat generation, and significantly longer blade life than TiN or PTFE options. An outstanding choice for high-volume practices that demand consistent performance across a large number of casts.
✂️ Why Segmented? The Heat and Speed Advantage
The segmented blade design features cut-out sections around the blade circumference that reduce the total surface area in contact with the cast at any moment. On a high-volume clinical day, this difference is felt immediately:
- ✅ Significantly less heat generated — greater patient comfort and safety, especially on thicker casts
- ✅ More aggressive cutting action — faster cast removal with fewer passes
- ✅ Better chip clearance — cast debris exits through the gaps rather than building up under the blade
- ✅ Preferred by many high-volume clinicians for polyester and plaster casts where speed matters
- ⚠️ The segmented edge can feel slightly more aggressive to the patient — technique and experience matter
The combination advantage: When you pair segmented geometry with ZrN’s 50% hardness advantage over TiN, you get a blade that cuts faster, runs cooler, and lasts longer — all in a 5-pack format that keeps your supply stocked without constant reorders.
🔬 Zirconium Nitride Coating — What You Need to Know
Zirconium Nitride (ZrN) is a silver-gray PVD ceramic coating applied to the stainless steel blade base using the same physical vapor deposition process as Titanium Nitride — but with a harder, more wear-resistant compound that is exclusive to the CC7/CC8 platform.
- ✅ ~50% harder than Titanium Nitride — measurably longer blade life per blade
- ✅ Excellent thermal stability — maintains cutting performance even as blade temperature rises during use
- ✅ Superior corrosion resistance — silver-gray ZrN layer protects the steel base in clinical environments
- ✅ Significantly more durable than PTFE coating — no risk of the coating wearing off after initial use
- ✅ 5-position rotatable mount — rotate to a fresh cutting edge to further extend blade life
- ✅ Excellent performance on Plaster of Paris (Gypsona) and Polyester casts (Deltalite/Benicast/CellaCast)
- ⚠️ Per DeSoutter’s guidance, not recommended for Fiberglass (Deltalite/Scotchcast) — for fiberglass-heavy practices, the Ion Nitride blade is the recommended top-tier option
🔵 Round vs. Segmented Blades — Which Do You Need?
| Blade Style |
How It Cuts |
Best For |
Available Sizes (ZrN) |
| Full Round |
Continuous circular cutting edge oscillates through the cast material |
Standard cast removal; plaster and polyester; general orthopedic use |
64mm |
| Segmented (This Blade) |
Cut-out segments reduce contact area — less heat, more aggressive cutting, better chip clearance |
High-volume practices; faster removal; heat-sensitive patients; polyester and plaster |
64mm, 80mm |
Need a ZrN round blade instead? See the DeSoutter 19660 ZrN Round 64mm 5-Pack. Need the larger 80mm segmented? See the DeSoutter 19710 ZrN Segmented 80mm 5-Pack.
📊 CC7/CC8 Cast Saw Blade Coating Comparison — Strongest to Weakest
The CC7 and CC8 systems introduced Zirconium Nitride — a coating tier not available in the older CC4/CC5/CC6 lineup. Understanding the full hierarchy helps you match blade performance to your clinical volume and cast material.
| Rank |
Coating Type |
How It Works |
Best For |
| #1 |
Ion Nitride (Plasma Coated) |
Nitrogen ions diffused directly into the steel in a vacuum vessel — near-diamond hardness, no surface coating to wear off; the modification goes into the steel itself |
All cast types including fiberglass; maximum durability; highest-volume practices |
| ⭐ #2 |
Zirconium Nitride (ZrN) ← You are here |
Silver-gray PVD ceramic coating; ~50% harder than Titanium Nitride; excellent thermal stability and corrosion resistance — exclusive to the CC7/CC8 platform |
Plaster and polyester casts; high-volume practices; superior blade life vs. TiN; 5-pack value |
| #3 |
Titanium Nitride (TiN) |
Gold PVD ceramic coating; ~3x harder than uncoated stainless steel; reduces drag and keeps teeth sharper longer |
Plaster of Paris and polyester casts; moderate-to-high volume practices |
| #4 |
PTFE (Teflon Coated) |
Spray-applied non-stick coating; low friction but tends to wear off after initial use; most economical coated option |
Lower-volume practices; plaster and polyester; budget-conscious clinics |
💡 Need the absolute maximum blade life? Consider upgrading to the DeSoutter 20280 Ion Nitride segmented blade 64mm — nitrogen diffused directly into the steel for near-diamond hardness with no surface coating to wear off.
📋 Product Specifications
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Part Number: 19730
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Blade Style: Segmented
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Blade Coating: Zirconium Nitride (ZrN) — Silver-Gray PVD Ceramic
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Diameter: 64mm
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Mounting: 5-position rotatable mount — rotate to a fresh cutting edge to extend blade life
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Compatible Models: DeSoutter CleanCast CC7, CC8
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Not Compatible With: DeSoutter CC4, CC5, CC6 (different mounting system)
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Quantity: 5-pack
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Recommended Cast Materials: Plaster of Paris (Gypsona), Polyester (Deltalite/Benicast/CellaCast)
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Not Recommended For: Fiberglass (Deltalite/Scotchcast)
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Shipping: Ships from NC warehouse in 2–3 business days.
⏱️ When Should You Replace Your Cast Saw Blade?
A patient is always aware of a cast saw near their limb — so a blade that struggles to cut cleanly is a problem on two fronts: it takes longer and generates more heat. Signs it’s time to replace your blade:
- The blade requires more passes or pressure to cut through the cast
- Increased heat felt through the cast padding during removal
- Longer cast removal times than usual
- Visible wear or dullness on the cutting edge
The Zirconium Nitride coating delivers meaningfully longer blade life than TiN or PTFE. The 5-pack format ensures you always have a fresh blade on hand. Remember to rotate to a fresh position (up to 5 times) before replacing to maximize every blade’s value.
Frequently Asked Questions
What is the difference between the DeSoutter 19730 and the 19710 blade?
The 19730 is a 64mm blade suited for standard adult and pediatric casts. The 19710 is an 80mm blade designed for thick adult casts and long-arm applications. Both feature Zirconium Nitride (ZrN) coating and a segmented design for reduced heat and extended blade life on plaster and polyester casts.
Can the DeSoutter 19730 cut fiberglass casts?
No. Per DeSoutter guidance, the 19730 ZrN blade is not recommended for fiberglass casts. For fiberglass, use the Ion Nitride blade (part number 20280 for 64mm or 20290 for 80mm), which is the only coating recommended for fiberglass.
What is the difference between Zirconium Nitride (ZrN) and Titanium Nitride (TiN) blades?
Zirconium Nitride (ZrN) is approximately 50% harder than Titanium Nitride (TiN), delivering measurably longer blade life per blade. Both are PVD ceramic coatings recommended for plaster and polyester casts. The 19730 ZrN 5-pack is the high-volume upgrade over the TiN 19680 single blade.
What does the 5-position rotatable mount mean?
The 19730 blade features a 5-position rotatable mount, meaning you can rotate the blade to a fresh cutting edge up to 5 times before replacing it. Combined with the 5-pack format, this gives high-volume practices maximum value per order.
What is the difference between segmented and round cast saw blades?
Segmented blades have gaps cut into the blade edge, which reduces heat buildup and improves cutting speed through dense cast materials. Round (full-circle) blades provide a smoother cut and are often preferred for thinner or more delicate casts. The 19730 segmented design is ideal for high-volume plaster and polyester cast removal.
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This blade fits the CC7 and CC8 cast saw systems. Browse all CC7/CC8 blades — round and segmented, Ion Nitride, Zirconium Nitride, Titanium Nitride, and PTFE coatings in 32mm, 40mm, 64mm, and 80mm sizes.
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