Bi-Metal Hole Saw
Robust hole saw with variable tooth pitch and an unbreakable flexible bimetal blade body. The reinforced stiff base is equipped with thread and drive-pin holes for secure mounting on the arbor. High manufacturing accuracy gives excellent cutting performance and tool life.

Application
For cutting circular holes in thin- to thick-walled material with a flat or convex workpiece surface. Suitable for stainless steel, brass, copper, cast iron, light metal, wood, plasterboard and plastic panels.

Recommendation
Use cutting oil such as No. 084205 size 0.25 to extend service life and improve cutting progress.

Product Specification
Hole saw diameter: 19 mm
Saw material: Bimetal
Tooth pitch: Variable 4 / 6 TPI
Maximum depth of cut: 38 mm
Maximum operating depth: 40 mm
Recommended speed for steel: 460 min^-1
Recommended speed for stainless steel: 230 min^-1
Recommended speed for aluminium: 690 min^-1
Mounting system: Thread and drive-pin holes
Suitable arbor size range: Hole saws 14-30 mm use small arbor; hole saws 32-152 mm use large arbor

Notes
Arbors and hole saws are compatible with commercially available bi-metal hole saws apart from Bosch SDS.
For drill heads for stone use No. 788000.
For carbide circle cutters for steel see No. 118400, 118500 and 119000.