General
Material	HSS bimetal
Tooth distance	Vario gearing
Pitch	4 - 6 teeth per inch
Hole diameter	68 mm
Saw length	50 mm
Max. drilling depth	40 mm
Receiving thread	M 16
Compatibility	CIMCO-Artikelnr. 20 7580 and 20 7588
Materials of use	steel, cast iron, stainless steel, copper, non-ferrous metals, hardwood and softwood, Rigips boards

The Cimco hole saw type 207468 is a tool made of HSS-bi-metal, specifically designed for drilling hole diameters with a Ø of 68 mm. The tool features a Vario-tooth design, enabling a variable tooth pitch of 4 to 6 teeth per inch. This construction ensures a rattle-free drilling performance, which is particularly advantageous when processing metallic and hard materials. The hole saw is suitable for use in various materials, including steel, cast iron, stainless steel, copper, non-ferrous metals, hardwood and softwood, as well as Rigips boards. The saw has a total length of 50 mm and allows for a maximum drilling depth of 40 mm. The shank thread is M 16, allowing the hole saw to be mounted on suitable shank adapters, such as Cimco articles 20 7580 and 20 7588.

Hole saw with Vario-tooth design enables optimized material processing through adjustable tooth pitch. The teeth are designed to ensure uniform feed behavior during rotation and to minimize vibrations. This is particularly important when processing thick or hard materials, where irregular tooth spacing could lead to rattling or tool breakage. The use of HSS-bi-metal ensures high strength and heat resistance, extending the tool's service life and improving processing quality.

Applications include industrial manufacturing, machine building, metalworking, as well as construction and renovation sectors. The hole saw is suitable for drilling in sheets, structural components, doors, enclosures, and other parts where a clean, round hole diameter is required. The maximum drilling depth of 40 mm also makes it suitable for deep drilling in thicker materials without the tool getting stuck in the material.

Functions and equipment in detail include the integrated M 16 shank thread, ensuring a secure connection to the drill machine adapter or shank. From a hole diameter of 32 mm, additional pilot holes are present, stabilizing the tool during drilling and preventing misalignment. The saw has a length of 50 mm, with an effective drilling length of 40 mm. The material composition of HSS-bi-metal offers a good combination of hardness and toughness, ensuring a long service life.

Technology explained simply shows that the Vario-tooth design is not merely an aesthetic feature but a functional improvement. The variable tooth pitch dynamically adapts to processing conditions, optimizing cutting speed and feed behavior. The HSS-bi-metal alloy consists of a hard, tough tooth edge and a more flexible core, increasing tool strength and reducing breakage risks.

Compatibility and accessories include use with Cimco shank adapters, article numbers 20 7580 and 20 7588. These shanks allow mounting the hole saw on drill machines or drilling devices. Additionally, suitable pilot drills such as article 207590 (6.35 mm, 70 mm long) are available, which can be used for drilling hole saws with diameters from 14 to 30 mm. The hole saw 207468 is also compatible with other hole saws from the manufacturer, particularly the bi-metal hole saw 207564, which has a diameter of 68 mm and includes a shank.

Mounting and installation is done via the M 16 thread on a suitable shank. The drill machine must be adjusted accordingly to ensure the required rotational speed and feed force. The drilling depth is limited to 40 mm to prevent excessive tool loading. When processing hard materials, appropriate cooling or lubrication is recommended to extend tool life.

Operational advantages include high cutting quality, low vibration, and long service life. The Vario-tooth design reduces rattling, improving the user experience and reducing the risk of tool breakage. The use of HSS-bi-metal provides high resistance to wear and heat, which is particularly beneficial during prolonged drilling operations. The hole saw is thus suitable for professional users in industrial and craft sectors who value reliability and precision.