CMT XTreme Solid Carbide Twist Drill - 4mm (5/32 in.) - 120 deg. Point - Right-Hand Rotation is a precision-engineered boring bit built for high-speed through-hole drilling on CNC boring machines and multi-spindle boring centers. Manufactured from premium HWM solid carbide, this 4mm twist drill delivers exceptional wear resistance and consistent hole quality across a wide range of panel and solid wood materials. Designed for use with CMT 364 and 365 adapter systems, it brings together extreme sharpening geometry, a matched common shank design, and 2 precision-ground cutting edges to meet the demands of furniture manufacturing and panel processing production environments.

Key Features

• Premium HWM Solid Carbide Construction - provides exceptional wear resistance under high-speed CNC production conditions, reducing tool change frequency and maintaining consistent bore quality over extended run times.
• Extreme Sharpening Geometry with Negatively Ground Spurs - the XTreme sharpening profile with negatively ground spurs produces clean entry points and tight-tolerance holes, minimizing tearout on laminates, MDF, and veneered panels.
• 2 Precision-Ground Cutting Edges (Z2) - dual cutting edges ensure balanced cutting forces and smooth chip evacuation, contributing to accurate, repeatable hole placement in CNC panel processing applications.
• 2 Spiral Flutes - efficiently clear chips from the bore during through-hole drilling, reducing heat buildup and maintaining clean hole walls across chipboard, plywood, and solid hardwood.
• Common Shank Design (S=D, 4mm Shank) - shank diameter matches the drill diameter, allowing direct compatibility with CMT 364 and 365 adapters and bushings on multi-spindle boring centers without additional reduction sleeves.
• Right-Hand (RH) Rotation - standard clockwise rotation matches the spindle direction of conventional CNC boring machines, enabling straightforward integration into existing production setups.
• Compact Overall Length of 55mm with 27mm Cutting Height - the proportioned geometry provides the reach needed for through-hole dowel boring while maintaining rigidity and minimizing deflection at the tool tip.

Why This Product

• The XTreme negatively ground spur sharpening geometry is specifically designed for clean through-hole drilling on panel products such as MDF, HDF, chipboard, and laminates - materials where entry and exit quality directly affect finished product appearance.
• The matched 4mm common shank (S=D) eliminates the need for adapter reduction when used with CMT 364 and 365 boring systems, making this bit a direct-fit solution for multi-spindle CNC boring centers already running that adapter platform.
• HWM solid carbide construction offers superior hardness compared to high-speed steel alternatives, translating to longer service intervals in production settings where boring bits cycle continuously through dense engineered wood and hardwood panels.
• With a 120 deg. point angle and 27mm cutting height, this drill is configured for dowel connection through-hole work in furniture manufacturing - the most common boring application in cabinet and panel processing production lines.

Specifications

• Manufacturer Part Number: 363.040.21
• Brand: CMT Orange Tools
• Sharpening Type: Extreme
• Diameter: 4mm (5/32 in.)
• Cutting Height: 27mm
• Total Length: 55mm
• Shank Diameter: 4mm
• Number of Cutting Edges: 2
• Number of Flutes: 2
• Shank Type: Common shank (S=D - shank diameter equals drill diameter)
• Rotation: Right-hand (RH)
• Point Angle: 120 deg.
• Blade Material: HWM Solid Carbide

Approved Applications

• Through-hole drilling for dowel connections on CNC boring machines
• Panel processing on multi-spindle boring centers (with CMT 364 or 365 adapters)
• Furniture manufacturing and cabinet component boring
• Solid hardwood and softwood drilling
• Chipboard, MDF, HDF, and plywood boring
• Laminate panel through-hole drilling