Product Description
CMT Solid Carbide Up/Downcut Spiral Bit - 3/8" Diameter, DLCS Coated, Right-Hand is a premium compression spiral router bit engineered for industrial CNC routing applications where clean, tear-out-free cuts on both faces of the workpiece are essential. Built entirely from solid carbide with a 3-flute upcut and 3-flute downcut geometry, this bit simultaneously pulls chips upward and pushes them downward, producing chip-free surfaces on the top and bottom of the material in a single pass. Protected by CMT's advanced DLCS (diamond-like carbon modified) chrome coating, it delivers extended tool life and exceptional performance in hardwood, plywood, MDF, laminates, melamine, and plastics.
Key Features
- Solid Carbide Construction (HWM Micrograin Carbide) - the entire body is manufactured from premium hard metal carbide, providing superior wear resistance and allowing more resharpenings over the life of the tool compared to carbide-tipped designs.
- DLCS Chrome Coating (Diamond-Like Carbon Modified) - this advanced surface treatment features enhanced load-bearing capacity, dramatically extending tool life in high-cycle industrial CNC environments and reducing heat buildup during aggressive cuts.
- 3+3 Up/Downcut Compression Geometry - three upcut flutes and three downcut flutes work simultaneously to shear both faces of the workpiece cleanly, eliminating tear-out on top and bottom surfaces in through-cut applications.
- 3/8" Diameter x 1" Cutting Height - compact cutting diameter with a 1" cutting height suits standard through-cut thickness ranges in sheet goods, while the 13/64" upper cutting height segment handles the downcut portion of the compression action.
- 3/8" Shank x 3" Total Length - the matching shank-to-diameter ratio ensures rigid tool engagement and minimal vibration in CNC router collets, contributing to consistent cut quality across long production runs.
- Right-Hand Rotation - compatible with the vast majority of CNC routers and router tables that use standard right-hand collet systems, making this bit a direct fit for most shop setups.
Why This Product
- The 3+3 compression spiral geometry solves one of the most common CNC routing challenges - achieving clean, splinter-free edges on both faces of plywood, melamine, and laminated panels in a single pass without requiring additional finishing steps.
- The DLCS modified diamond-like carbon coating provides enhanced load-bearing capacity beyond standard coatings, making this bit well suited for high-volume CNC production environments where tool longevity directly affects operating costs.
- Solid carbide construction throughout - not carbide-tipped - means the bit can be resharpened multiple times, extending value over its service life in demanding routing applications with hardwood, MDF, chipboard, and plastics.
- With a 3/8" shank and 3" total length, this bit fits standard CNC router and router table collet systems without adapters, offering a practical, ready-to-run solution for shops cutting sheet goods and solid hardwood panels.
Specifications
- Manufacturer Part Number: 190.813.41
- Brand: CMT Orange Tools
- Product Type: Solid Carbide Up/Downcut Spiral Router Bit
- Diameter: 3/8"
- Cutting Height: 1"
- Upper Cutting Height (I1): 13/64"
- Total Length: 3"
- Shank Diameter: 3/8"
- Number of Teeth: 3 + 3
- Blade Material: Solid Carbide (HWM)
- Coating: DLCS - Diamond-Like Carbon Modified Chrome Coating
- Rotation: Right-Hand (RH)
- Macro Class: Router Cutter
Approved Applications
- CNC Routing - through-cuts in sheet goods and solid wood panels
- Through-cuts in plywood, MDF, and chipboard
- Two-face finish cuts in laminates and melamine
- Mortising operations in solid hardwood and softwood
- Compression routing in plastic sheet material
- Router table and handheld router use
Frequently Asked Questions
What is the difference between the two cutting height measurements - 1" and 13/64"?
This bit has two distinct cutting zones. The full cutting height of 1" represents the total length of the fluted cutting area. The 13/64" measurement (I1) refers specifically to the upper downcut segment of the compression geometry - the portion that cuts downward into the top face of the workpiece. The remaining flute length below handles the upcut action. Together, these two zones create the compression effect that produces clean edges on both faces simultaneously.
What does DLCS coating mean and how does it benefit my cutting operations?
DLCS stands for a modified diamond-like carbon coating with enhanced load-bearing capacity. Unlike standard coatings, it is engineered specifically for industrial CNC tools to extend tool life under high-cycle and high-load conditions. It helps reduce friction and heat at the cutting edge, which contributes to longer service intervals between resharpenings.
Is this bit compatible with a standard router table or handheld router, or only with CNC machines?
This bit is compatible with CNC routing machines, router tables, and handheld routers. The 3/8" shank fits standard collet systems found across all three machine types. However, the compression geometry - with its 3+3 upcut and downcut flutes - delivers its greatest advantage in through-cut CNC routing applications where both faces of the panel need to remain chip-free.
What materials can this spiral compression bit cut cleanly?
This bit is suited for solid hardwood, softwood, plywood, MDF, chipboard, laminates, melamine, and plastic. The solid carbide HWM construction and DLCS coating make it particularly effective in abrasive engineered wood products like MDF and chipboard, where softer tooling wears quickly. The compression geometry is especially valuable in laminated and veneered panels where surface integrity on both faces is required.
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.