Specification	Value
Model	Z21
Part Number (Zünd)	3910314
Part Number (Esko)	BLD-SF421 / i-421 / G42458257
Part Number (Summa)	L25 / 500-9811 / 500-9812
Part Number (Gerber)	MCT SE21 / 895020
Cutting Angle	Single Edge 63° + 84°
Max. Cutting Depth	17.2 mm (0.677 in)
End Over Cut	1.60 mm x Tm
Cut Method	Thru Cut, Oscillating
Material Compatibility	Corrugated Board, Foamboard, Folding Carton, Felt, Leather, Honeycomb, Foam Rubber, Carpet, 3M VHB

Product Description: The Z21 (Part Number: 3910314) is a high-performance, single-edge oscillating blade manufactured from premium fine-grain tungsten carbide. This versatile flat stock blade is engineered for cross-compatibility with major digital cutting systems, serving as a direct replacement for the Esko BLD-SF421 (G42458257), Summa 500-9811/12, and Gerber MCT 895020. Featuring a unique dual-angle geometry (63° + 84°), it is optimized for high-speed thru-cutting of thick and structural substrates. It accommodates a maximum cutting depth of 17.2 mm (0.677 in), making it an industry standard for processing corrugated board, honeycomb, foamboard, and heavy-duty technical materials like 3M VHB tape and carpet. The high carbide density ensures exceptional edge retention and mechanical resistance during intensive oscillating cycles.

Zund OEM-Quality tungsten carbide Blades at Wholesale Prices

Thick material processing shouldn't mean paying exorbitant prices for consumables. Our compatible  blades are strictly manufactured to meet or exceed original equipment standards, providing exceptional durability and edge retention at a fraction of the cost.
Large inventory available for immediate worldwide shipping.
Contact our technical sales engineers today for volume discounts or material compatibility advice:
📩 Email: [info@hengrui-knives.com ]
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