Product Description
The CMT 190.815.41 Solid Carbide Up/Downcut Spiral Bit - 1/2 in. diameter with DLCS chrome coating - is a professional-grade compression router bit engineered for CNC routing operations that demand clean, chip-free faces on both sides of the workpiece. Built from solid micrograin carbide with a 3+3 tooth configuration (three upcut flutes and three downcut flutes working simultaneously), this right-hand spiral bit is purpose-built for through-cuts in plywood, MDF, laminates, melamine, and hardwoods where surface quality on both faces is critical. The advanced DLCS (diamond-like carbon) coating sets this mortising spiral apart from standard coated bits, delivering extended tool life and reduced heat buildup during demanding industrial CNC cycles.
Key Features
- Solid Carbide Construction (HWM Micrograin Carbide) - manufactured entirely from premium micrograin carbide, this bit resists wear far longer than carbide-tipped alternatives, allowing more resharpenings and a lower long-term cost per cut.
- DLCS Diamond-Like Carbon Coating - a modified diamond-like carbon coating with enhanced load-bearing capacity that reduces friction, dissipates heat, and protects the cutting edges under continuous industrial CNC loads, resulting in longer intervals between tool changes.
- Up/Downcut Compression Spiral Geometry (3+3 Teeth) - three upcut flutes and three downcut flutes work simultaneously to shear both faces of the workpiece cleanly, eliminating tearout and splintering on the top and bottom surfaces in a single pass.
- 1/2 in. Diameter x 1 1/8 in. Cutting Height - the full cutting zone handles typical sheet goods thickness efficiently, while the compact 1/4 in. upper cutting height provides precise compression action close to the workpiece surface.
- 1/2 in. Shank, 3 in. Total Length - a robust 1/2 in. shank minimizes vibration and runout at CNC spindle speeds, and the 3 in. total length provides clearance for fixture and spoilboard setups without sacrificing rigidity.
- Right-Hand Rotation - compatible with standard right-hand CNC router spindles and router tables without any special configuration, making it a straightforward drop-in upgrade for production environments.
Why This Product
- For CNC operators routing veneered plywood, melamine, or laminate panels, the compression geometry eliminates the need for scoring passes or secondary sanding - both faces come out clean in a single through-cut, saving cycle time and finishing labor.
- The DLCS coating is specifically engineered for industrial CNC tool demands - unlike standard uncoated or TiN-coated bits, its enhanced load-bearing capacity means the coating holds up under repeated high-feed-rate passes, keeping edges sharper longer in production runs.
- Solid carbide construction throughout - not just at the tip - means the entire flute geometry maintains its precision over multiple resharpenings, extending the usable life of the bit well beyond what a carbide-tipped spiral can offer.
- The 3+3 flute count provides a higher number of cutting edges than a standard 2-flute compression bit, distributing cutting load more evenly and producing a smoother finish in dense materials like MDF and hardwood at CNC routing speeds.
Specifications
- Manufacturer Part Number: 190.815.41
- Brand: CMT Orange Tools
- Product Type: Solid Carbide Up/Downcut Spiral Router Bit
- Diameter: 1/2 in.
- Cutting Height: 1 1/8 in.
- Upper Cutting Height: 1/4 in.
- Total Length: 3 in.
- Shank: 1/2 in.
- Number of Teeth: 3 + 3
- Blade Material: Solid Carbide (HWM Micrograin)
- Coating: DLCS (Diamond-Like Carbon)
- Rotation: Right-Hand (RH)
- Macro Class: Router Cutter
Approved Applications
- CNC Routing
- Through-Cuts in Plywood and MDF
- Two-Face Finish Cuts in Veneered Panels
- Mortising Operations
- Cutting Laminates and Melamine
- Routing Solid Hardwood and Softwood
- Chipboard and Plastic Routing
- Router Table Operations
Frequently Asked Questions
What makes this an up/downcut (compression) bit, and why does it matter?
This bit has two sets of flutes working in opposite directions simultaneously - three upcut flutes and three downcut flutes (3+3 configuration). The upcut flutes shear the bottom face of the workpiece cleanly while the downcut flutes shear the top face, applying compression forces toward the center of the material. This eliminates tearout and splintering on both surfaces in a single pass, which is critical when routing veneered plywood, melamine, laminates, or any material where both faces must be finish-quality without secondary cleanup.
What is DLCS coating and how does it benefit CNC routing performance?
DLCS stands for a modified diamond-like carbon coating specifically engineered for industrial CNC cutting tools. According to CMT, it features enhanced load-bearing capacity compared to standard coatings, which means it resists breakdown under the high feed rates and continuous cutting cycles typical of CNC production environments. The result is reduced friction, lower heat generation at the cutting edge, and a longer interval before the bit requires resharpening or replacement.
What shank size does this bit use, and which machines is it compatible with?
This bit uses a 1/2 in. shank, which is the standard shank diameter for full-size CNC routing machines, router tables, and handheld routers equipped with a 1/2 in. collet. The right-hand rotation is compatible with all standard right-hand spindle configurations. Always confirm your machine's collet size before installation.
Can this solid carbide bit be resharpened, and does that offer an advantage over carbide-tipped bits?
Yes. Because this bit is manufactured entirely from solid carbide rather than having carbide tips brazed onto a steel body, the full flute geometry is carbide throughout. This allows the bit to be resharpened multiple times while maintaining its compression geometry, making it more economical over its full service life compared to carbide-tipped spiral bits that have a limited resharpening depth before the brazed joint becomes a constraint.
Reviews
FAQs
Standard Shipping is free on most orders over $50 within the contiguous US. If the order is under $50.00, the shipping is $9.99 set fee for shipping within the contiguous US.
Most of our products will ship within 1 to 3 Business Days. Some Special order products will ship within 2 to 5 Business Days. Preorders will be shipped to you on a first come first serve basis as soon as available from the manufacturer. Items that are "Made-to-Order" (Custom order products) will be shipped when fabrication is completed, shipping and delivery times will vary and depend on manufacturing.
Products that are shipped directly from the manufacturer will have processing and fulfilment times subject to manufacturer availability.
Preorders are shipped on a first come first serve basis as soon as available from the manufacturer, the sooner you place your Preorder the sooner your order will ship.
Freight shipping Policy:
Orders/Items too large or heavy may require special handling/Shipping and may require to be sent by truck. Someone must be present to accept truck deliveries. Standard truck delivery is to a dock facility designed to receive freight. You will be notified within 24 hours of ordering to confirm delivery. Lift gates for deliveries are available for an additional fee.
We offer Financing options through Clicklease
Please email your Return request to info@FactoryDirectSupplyOnline.com
Include the order number and the reason for your return.
All returns, regardless of their categorization, must include all original parts, be in their original packaging, and in the condition in which they were received. You may not qualify to receive a refund If the returned item is used, damaged, missing any parts, or is damaged during return shipping.
Checkout our complete Return policy
You can contact us through our contact page! We will be happy to assist you.