Product Description
CMT Solid Carbide Reversible Insert Knives (4/35 deg.) - 20x4.1x1.1mm - 10-Pack by CMT are precision-ground, throwaway-style indexable carbide knives engineered for demanding profiling and molding applications. Manufactured from K1920 grade solid carbide (tungsten carbide), these reversible knives feature four cutting edges ground at a 35 deg. bevel angle, so when one edge dulls you simply rotate to a fresh one - extending productive use between replacements and reducing downtime on spindle moulders, profile machines, and compatible insert cutter head systems. Each pack contains 10 knives, making this an excellent choice for high-volume production shops that require a reliable supply of carbide insert knives on hand.
Key Features
- K1920 Solid Carbide Material - tungsten carbide construction delivers exceptional hardness and wear resistance, meaning these knives stay sharp significantly longer than high-speed steel alternatives when working hardwood, softwood, MDF, chipboard, and plywood.
- Four Reversible Cutting Edges (35 deg. bevel) - the indexable design lets you rotate the knife up to four times before replacement, multiplying the value of each knife and cutting your cost-per-cut in high-production environments.
- Precision Ground Dimensions - 20x4.1x1.1mm - tight manufacturing tolerances ensure consistent profile quality and accurate seating in compatible cutter head bodies, reducing the risk of vibration, chatter, or profile variation between knives in the same set.
- Standard Throwaway (Indexable) Format - the throwaway knife design eliminates the need for resharpening equipment or skilled knife-grinding labor, so you swap and go rather than stopping production to regrind.
- 10-Pack Quantity - sold in a 10-piece pack, giving production facilities an immediate reserve supply of carbide knives ready for fast changeover without multiple reorder cycles.
Why This Product
- Solid carbide (K1920 grade) delivers the cutting-edge durability that production woodworkers need when processing abrasive materials like MDF and chipboard - materials that quickly wear out softer tooling.
- With four usable cutting edges per knife and 10 knives per pack, you get up to 40 cutting-edge changes from a single purchase - an efficient, cost-effective solution for shops that cannot afford extended downtime for resharpening.
- The 20x4.1x1.1mm format with a 35 deg. bevel is a standard geometry for reversible insert shaper systems, meaning these knives are designed to drop into compatible cutter heads without modification or special setup.
- The throwaway indexable design simplifies toolroom management - no sharpening, no grinding, no waiting - just rotate to a fresh edge or swap in a new knife and resume profiling, grooving, rabbeting, or jointing operations immediately.
Specifications
- Manufacturer Part Number: 790.200.01
- Brand: CMT Orange Tools
- Total Length: 20mm
- Cutting Depth: 4.1mm
- Cutting Height: 4.1mm
- Teeth Thickness: 1.1mm
- Number of Cutting Edges: 4
- Bevel Angle: 35 deg.
- Material: K1920 Solid Carbide
- Quantity: 10-Pack
Approved Applications
- Profiling and Molding
- Edge Profiling
- Rabbeting
- Grooving
- Jointing
Frequently Asked Questions
How many cutting edges does each knife have, and how does the reversible design work?
Each knife provides four cutting edges ground at a 35 deg. bevel angle. When the active edge becomes dull, you index (rotate) the knife to expose a fresh cutting edge. This process can be repeated up to four times per knife, maximizing the usable life of each carbide insert before it needs to be replaced.
What are the exact dimensions of these insert knives?
The knives measure 20mm in total length, 4.1mm in cutting depth, 4.1mm in cutting height, and 1.1mm in teeth thickness. These dimensions correspond to the L (length) x H (height) x K (thickness) format used for standard indexable reversible knife systems.
What materials can these solid carbide knives process?
The K1920 solid carbide grade is suited for cutting hardwood, softwood, MDF, chipboard, and plywood. The carbide material withstands the abrasive nature of engineered wood products like MDF and chipboard that tend to accelerate wear on softer tooling materials.
How many knives come in each pack, and what cutter head class are these designed for?
Each pack contains 10 knives. These are classified as HKKRV standard reversible throwaway knives and are identified by the K192 product family designation, compatible with insert shaper cutter head systems designed for the 20x4.1x1.1mm knife format.
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