Product Description
CMT 310.050.41 Dowel Drill - 5 x 27 x 57.5mm, Right-Hand Rotation is a solid carbide boring bit engineered for clean, precise blind-hole drilling in furniture manufacturing, cabinet making, and panel processing. Built entirely from premium super micrograin carbide sourced from Ceratizit in Luxembourg, this 5mm dowel drill delivers exceptional bore quality in hardwood, MDF, particle board, veneered panels, and other demanding composite materials. Its compact 57.5mm overall length and 10x27mm parallel shank make it a natural fit for high-speed multi-spindle boring machines and CNC routers where consistent results and long tool life are essential.
Key Features
- Solid carbide (HW) construction throughout - the entire bit body is made from premium super micrograin carbide, not merely tipped, giving it greater rigidity and resistance to vibration so bores stay accurate over long production runs.
- 2 curved, negatively ground spurs (V2) - the unique spur geometry shears material at the bore perimeter before the main cutting edges engage, producing exceptionally clean hole walls and flat bottoms with no rough edges or tearout - critical for dowel joints that must fit flush.
- Centre-point balanced tip design - keeps the drill centered on entry, reducing wander and producing consistently round, on-location holes even at high feed rates on CNC boring centers.
- Plunge edge running to the centre of the bit - reduces drilling resistance and increases feed speed, which means higher throughput and less heat buildup during production.
- 2 cutting edges and 2 spiral flutes (Z2) - efficient chip evacuation keeps the bore clear, preventing re-cutting of chips that would degrade hole quality and accelerate wear.
- Solid carbide resharpenable body - because the entire tool is one piece of carbide rather than a tipped steel body, it can be resharpened an almost unlimited number of times, lowering the long-term cost per hole significantly.
- 10x27mm parallel shank with driving flat - locks securely into standard boring machine chucks and CNC tool holders, preventing slippage under load and maintaining repeatable depth settings.
- Extreme sharpening rating - the geometry is optimized for in-house or professional resharpening, so the bit can be returned to full cutting performance rather than discarded after wear.
- Right-hand (RH) rotation - compatible with the standard spindle direction of the vast majority of industrial boring machines and CNC routers, requiring no special setup.
Why This Product
- When dowel joints must fit perfectly, hole quality is everything - the negatively ground curved spurs and centre-balanced tip work together to produce flat-bottomed, clean-walled bores that accept dowels without gaps, splinters, or rework, even in demanding materials like veneered MDF and coated particle board.
- Shops running high-volume panel processing on CNC boring centers or multi-spindle machines need a bit that maintains precision across thousands of holes - the solid carbide body resists heat and wear far longer than carbide-tipped steel alternatives, reducing downtime for tool changes mid-run.
- The resharpenable solid carbide design means this bit is a long-term investment rather than a consumable - each resharpening restores the original cutting geometry, keeping cost-per-hole low over the life of the tool.
- The plunge edge extending to the centre of the bit actively reduces drilling resistance, allowing faster feed rates on automated equipment without sacrificing bore quality - a direct productivity advantage in furniture and cabinet production environments.
Specifications
- Manufacturer Part Number: 310.050.41
- Brand: CMT Orange Tools
- Description: Dowel Drill 5x27x57.5mm RH
- Diameter: 5mm
- Cutting Height: 27mm
- Total Length: 57.5mm
- Shank: 10x27mm
- Rotation: Right-Hand (RH)
- Number of Spurs: 2
- Number of Teeth: 2
- Material: HW (Solid Carbide)
- Sharpening: Extreme
Approved Applications
- Blind-hole drilling for dowel connections in furniture assembly
- Panel drilling on multi-spindle CNC boring machines and boring centers
- Cabinet making and case construction
- Machining hardwood components
- Drilling particle board, MDF, and HDF panels
- Processing veneered wood and coated panels
- High-speed production boring on CNC routers with boring heads
Frequently Asked Questions
What is the difference between the solid carbide construction of this bit and a standard carbide-tipped dowel drill?
A carbide-tipped bit has only a small carbide insert brazed onto a steel body. The CMT 310.050.41 is made entirely from premium super micrograin carbide from Ceratizit, meaning the full body - not just the tip - is solid carbide. This provides greater rigidity, more consistent cutting performance, and the ability to be resharpened an almost unlimited number of times since there is no steel body limiting how far the tool can be reground. It also offers added safety because there is no brazed joint that could separate under stress.
What machines is this dowel drill compatible with?
The 10x27mm parallel shank with driving flat is designed to fit standard chucks and tool holders found on multi-spindle CNC boring machines, CNC boring centers, panel processing centers, and boring machines equipped with an adapter or chuck. The right-hand rotation matches the standard spindle direction used on the vast majority of these machines. Always confirm your machine's spindle diameter and chuck capacity against the 10mm shank before mounting.
Can this bit drill both hardwood and engineered wood panels?
Yes. The solid micrograin carbide construction and negatively ground curved spur geometry are specifically suited to hardwood as well as difficult composite materials including particle board, MDF, and veneered wood. The spurs shear the surface fibers or facing layer cleanly before the main cutting edges engage, which is what prevents tearout on veneered or coated surfaces where edge quality is critical for visible furniture components.
How do the curved, negatively ground spurs improve hole quality compared to standard spurs?
Standard spurs on many boring bits are ground with a positive rake that aggressively lifts material. The negatively ground curved spurs on this bit score and sever the material at the outer diameter of the bore before any lifting action occurs. This produces exceptionally clean bore walls and a flat bore bottom with no rough edges - a result that is especially important for dowel holes in furniture panels where a rough bore can prevent proper dowel seating or cause visible surface damage on finished faces.
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