220-08.66 Utensileria Ossolana Right-hand machine reamer, left-hand helical edges 6 degrees HSSE form B-D, customised centesimal diameter from Dia.8.66mm to Dia.9.65 cylindrical shank
(Incl. Tax: €31.48)
Right-hand machine reamer in HSSE with 6-degree left-hand helix, form 'B-D' manufactured in accordance with DIN 212 UNI 6853, with the possibility of customising the reamer diameter with centesimal progression and execution tolerance of 0/+0.004 mm. Cylindrical shank in tolerance h8, for drilling holes in all ferrous materials, steels, light alloys.

The right-hand machine reamer from Utensileria Ossolana, compliant with DIN 212 and UNI 6853 standards, is made of high-speed steel with cobalt (HSSE), featuring left-hand helix cutting edges at a 6-degree angle and geometry conforming to the B-D form according to DIN 212 and UNI 6853 regulations. This tool is designed for high-precision finishing of holes in ferrous materials, steels, light alloys, and cast irons. The shank is cylindrical and manufactured with an h8 tolerance to ensure a stable and reliable clamping. The reamer is available with a customizable diameter in hundredths progression, with an execution tolerance of 0/+0.004 mm, making it ideal for high-precision machining.
This type of tool is mainly used in precision mechanical workshops, automotive and aerospace industries, mold makers, industrial component manufacturers, and plant engineering. It is suitable for use on lathes, boring machines, drills, and CNC machining centers where accurate finishing of pre-drilled holes with high surface quality and tight tolerances is required.
Before use, it is necessary to ensure that the hole has been pre-drilled with a diameter smaller than that of the reamer, generally with a difference between 0.2 and 0.5 millimeters. It is important to verify that the material to be machined is compatible, such as mild and alloyed steels, cast irons, or light alloys, and that the required tolerance falls within the range guaranteed by the reamer, which is 0/+0.004 mm. The machine tool used must be precise and rigid, capable of ensuring correct tool alignment. It is essential to use chucks that can accommodate the cylindrical shank with minimal play, according to the h8 tolerance.
During use, the tool must rotate clockwise, even though its helix is left-handed. This configuration improves chip evacuation and process stability. The feed must be steady and controlled, preferably assisted by floating chucks or axial compensation. The cutting speed should be moderate and adjusted based on the material and reamer diameter, while lubrication is always recommended to ensure tool life and finish quality. The use of cutting oil or suitable coolant emulsion is advised.
The machine reamer Art.220 is one of the most in-demand tools in the field of high-precision machining. The right-hand reamer made of HSSE is designed to deliver high performance and consistent results across various materials, including steels, cast irons, and light alloys. This HSSE reamer, manufactured in B-D form, offers an excellent balance of reliability and durability, making it an essential precision reaming tool for any workshop.
Precision reaming requires dependable tools like the left-hand helix reamer, ideal for operations on lathes, drills, and CNC machining centers. Thanks to its geometry, it is perfectly suited for reaming alloyed steels and other difficult materials, always ensuring top-quality results. These precision tools stand out for their versatility, serving as tools for steels, tools for cast iron, and tools for light alloys, both in manual setups and on CNC machine tools.
Compliant with DIN 212 and UNI 6853 standards, the reamer features an h8 cylindrical shank, ensuring perfect grip in the chuck. The customizable hundredth-step diameter allows for optimal finishing in any production context, meeting a strict 0/+0.004 mm tolerance, which is critical for high-precision mechanics. The HSSE tool body is designed for durability, even under intense use or with challenging materials.
Used by companies operating in precision engineering, automotive, and aerospace, this custom reamer is ideal wherever tight tolerances and perfect surface finishes are required. It excels as a reamer for pre-drilled holes, but also proves effective as a tool for tolerance-grade holes in the most demanding industrial settings. It is a go-to choice among tools for mechanical workshops, CNC reaming machines, and automated production centers.
This professional reamer stands out for its efficiency in high-precision machining and for excellent chip evacuation during lubricated reaming. It ranks among the most versatile industrial precision reamers available today, engineered to set the standard among tools for machine tools. Its usage extends successfully to all operations involving cast iron and steel, ensuring consistent performance and repeatability in complex machining tasks.
- Brand:
- UTENSILERIA OSSOLANA
- Cutting Material:
- HSS-E
- Typology:
- Reamers for automatic machine
- Diameter "d1" mm:
- From 8.66 to 9.65
- Diameter "D":
- 9mm
- Lengt "L":
- 125mm
- Length "L1":
- 36mm
- Lengt "L2":
- 80mm