Product Description
CMT 190.505.41 Solid Carbide Up/Downcut Spiral Bit - 1/2" Diameter, DLCS Coated, RH by CMT is a professional-grade compression spiral router bit engineered for CNC routing applications that demand clean, tear-out-free cuts on both faces of the workpiece simultaneously. With its up-and-downcut compression geometry and advanced DLCS chrome coating, this 1/2" solid carbide bit is purpose-built for demanding industrial production work in plywood, MDF, laminates, melamine, and similar sheet materials where a chip-free finish on both surfaces is critical.
Key Features
- Solid Carbide Construction (HWM Micrograin Carbide) - the entire bit body is manufactured from premium hard micrograin carbide, delivering far superior wear resistance and edge retention compared to carbide-tipped tools, and allowing multiple resharpenings over the tool's lifespan.
- DLCS Chrome Coating (Diamond-Like Carbon Modified Coating) - CMT's ultimate industrial CNC coating technology features a modified diamond-like carbon layer with enhanced load-bearing capacity, dramatically extending tool life, reducing friction and heat buildup, and protecting the cutting edges during high-volume production runs.
- Up/Downcut Compression Spiral Geometry (Z2+2) - the 2+2 tooth configuration cuts upward and downward simultaneously, cleanly shearing both the top and bottom faces of the workpiece in a single pass and eliminating the surface tear-out that single-direction spiral bits produce on one face.
- 1/2" Cutting Diameter with 1" Total Cutting Height - the full 1" cutting height accommodates standard sheet material thicknesses in a single through-cut pass, while the 15/32" upper cutting zone and the remaining lower zone work in opposition to compress fibers from both directions.
- 1/2" Shank for Stability in CNC and Router Table Collets - the full 1/2" shank provides maximum grip surface in standard CNC spindle and router table collets, reducing vibration and chatter for cleaner cuts and improved bit longevity.
- 3" Total Length - sufficient overall length for secure collet engagement while maintaining rigidity and minimizing deflection during high-feed-rate CNC operations.
- Right-Hand (RH) Rotation - compatible with all standard CNC routers and router tables that use conventional right-hand rotating spindles, making this bit a direct drop-in for most professional setups.
Why This Product
- For CNC operators cutting through plywood, MDF, or laminated panels, the compression up/downcut geometry solves the core problem of surface tear-out - delivering a clean, chip-free finish on both the top and bottom face in a single pass, eliminating the need for secondary sanding or cleanup operations.
- The DLCS modified diamond-like carbon coating represents CMT's highest-tier industrial tool coating, offering enhanced load-bearing capacity specifically suited to high-cycle CNC production environments where bit longevity directly affects throughput and cost per part.
- Full solid carbide construction (HWM) means the bit maintains its cutting edge geometry under sustained heat and mechanical stress far longer than carbide-tipped alternatives, making it a reliable choice for production shops running continuous or high-volume cutting schedules.
- The 1/2" shank paired with a 1/2" cutting diameter and 1" cutting height delivers an optimized balance of rigidity and reach - reducing deflection during aggressive feed rates while still cutting through standard sheet goods cleanly in a single through-cut pass.
Specifications
- Manufacturer Part Number: 190.505.41
- Brand: CMT Orange Tools
- Product Type: Solid Carbide Up/Downcut Spiral Router Bit
- Diameter: 1/2"
- Cutting Height: 1"
- Upper Cutting Height: 15/32"
- Total Length: 3"
- Shank: 1/2"
- Number of Teeth: 2 + 2
- Blade Material: Solid Carbide (HWM Micrograin)
- Coating: DLCS (Diamond-Like Carbon Modified Coating)
- Rotation: Right-Hand (RH)
- Product Class: Router Cutter - Solid Carbide Spiral
Approved Applications
- CNC Through-Cuts in Plywood and Sheet Goods
- MDF and Chipboard Routing
- Laminate and Melamine Panel Cutting
- Two-Face Chip-Free Finish Cuts
- CNC Router Production Work
- Router Table Operations
- Solid Hardwood and Softwood Routing
- Plastic Panel Routing
Frequently Asked Questions
What is the difference between the upcut zone and the downcut zone on this bit?
This bit uses a 2+2 tooth configuration - two flutes cut in the upward direction and two flutes cut in the downward direction simultaneously. The upper portion of the cutting height (15/32") works in one direction, and the remaining lower cutting zone works in the opposite direction. This compression action shears the workpiece fibers cleanly from both faces at once, preventing surface tear-out on either the top or bottom of the panel.
What is DLCS coating and why does it matter for CNC routing?
DLCS is CMT's modified diamond-like carbon coating with enhanced load-bearing capacity. It is described as the ultimate technology for industrial CNC tools. In practical terms, this coating reduces friction and heat at the cutting edge during high-cycle production use, which extends tool life and helps maintain cut quality over a longer service period compared to uncoated or standard-coated carbide bits.
What machines are compatible with this bit?
This bit uses a 1/2" shank and right-hand (RH) rotation, making it compatible with CNC routing machines, router tables, and handheld routers equipped with a 1/2" collet and standard right-hand rotating spindles - which is the conventional spindle direction for most professional CNC and router equipment.
Can this bit be resharpened?
Yes. Because the bit is constructed entirely from solid carbide (HWM micrograin carbide) rather than using carbide-tipped inserts brazed to a steel body, the full carbide mass allows the bit to be resharpened multiple times across its service life, offering a longer usable lifespan compared to carbide-tipped compression bits of equivalent size.
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