Hole Saws

RUKO Bi-Metal Hole Saws

These multi-purpose, bi-metal hole saws have an alloy steel jacket and cutting edges of either high-speed steel (HSS) or 8% cobalt high-speed steel (HSSE-Co8). RUKO hole saws are available in various sizes ranging from 9/16 inch (14 mm) to 8 1/4 inch (210 mm). Inch and metric equivalent (mm) hole saw sizes are stamped on each hole saw blade.

Features

• Cutting edges of HSS or HSSE-Co8
• Alloyed steel 6135 jacket
• Cutting depth up to 1 1/2" (38 mm)
• High rotational precision
• Sturdy construction
• Hole saw and shank are in two parts, so hole saws of different diameters can be exchanged and fitted faster
• Positive chipping and cutting angles ensure more aggressive cutting
• Teeth welded onto steel jacket
• HSS hole saws have 5 teeth per inch. HSSE-Co8 hole saws have 6 teeth per inch
• Good chip removal
• Slots in the jacket side allow easy removal of cutout debris
• Exchangeable centering pilot drill bit
• Right-hand cutting
• Hole saw kits include a selection of saws in plastic cases
• Accessories include arbor holder assemblies and replacement pilot drill bits

Hole Saw Applications

• Use high-speed steel saws (106xxx) with varied cutting teeth for more easily cut materials, such as unalloyed steel (up to 700 N/mm2 strength), non-ferrous and light metals, plastics, plasterboard and light building boards, fiberboard, plywood and wood.
• Use 8% cobalt high-speed steel saws (Co8 series 126xxx) with fine cutting teeth for cutting harder metals such as alloyed and non-alloyed steels (up to 1,000 N/mm2 strength), high chromium alloyed steels, such as stainless steel, steels resistant to rusts and acids, non-ferrous and light metals.

Important Operating Notes

• These hole saws are unsuitable for hammer drill operation
• These hole saws are unsuitable for use on stone, concrete or tile
• Only slight pressure required to start drilling
• Drill with light, steady pressure
• Avoid pendulum movements while drilling holes
• Follow table of recommended cutting speeds
• Use cooling agents recommended for specified materials