Bosch EXPERT Wood cordless Circular Saw Blade 165 x 20 mm (with a 15.875 mm reducing ring), 48T, 2608902151

Bosch EXPERT Wood cordless Circular Saw Blade 165 x 20 mm (with a 15.875 mm reducing ring), 48 Teeth, 2608902151

Bosch EXPERT Wood cordless (article number 2 608 902 151) is a carbide-tipped circular saw blade for wood, 165 mm in diameter with a 20 (with a 15.875 reducer) mm bore and 48 teeth. The kerf is 1.5 mm over a 1.0 mm plate and maximum speed is 8,500 rpm. The blade is intended for cordless hand-held and plunge saws.

Thin kerf, optimised for cordless

This is the blade's defining difference. The kerf is just 1.5 mm over a 1.0 mm plate - noticeably thinner than the standard 1.8-2.6 mm. The reason is concrete: on a cordless machine every cubic millimetre of material removed is paid for out of the battery. A thinner kerf means less material removed, less load on the motor and more cuts per charge. In exchange, a thin plate is more sensitive to side load - the blade must not be twisted in the cut.

48 teeth - for a clean cut

At 165 mm, 48 teeth falls in the range for a clean crosscut. Blades with fewer teeth cut faster but leave a coarser edge and suit rough breakdown work; blades with more give an even smoother cut but heat up in thicker material. Forty-eight is the balance at which one blade does both jobs decently.

Geometry and carbide

The teeth use an alternate top bevel (ATB): each successive tooth is ground the opposite way and severs the fibres from the side rather than pushing them forward. That is what protects the underside of the workpiece from splintering. The hook angle is 10° - lower than usual for mains blades, which reduces the force with which the blade pulls the machine forward. The tips are tungsten carbide, which holds a keen edge many times longer than hardened steel and tolerates higher temperatures without softening.

Materials

The blade cuts softwood and hardwood as well as boards - chipboard, plywood, MDF and laminated panels. On laminate, backing under the workpiece matters especially, because the surface chips far more readily than solid timber.

Mounting and speed

Confirm your machine's arbor is 20 mm - any other size needs a reducing ring, not a blade forced onto the spindle. Machine speed must not exceed 8,500 rpm. Match the direction of rotation to the arrow on the blade as well - fitted backwards, a blade does not cut but crushes and overheats.

Getting a clean cut

Use backing under the workpiece: a sacrificial board or a zero-clearance insert. With nothing supporting the fibres below, they tear free no matter how sharp the blade. Feed steadily - too slow and the teeth heat up and burn the cut, too fast and the tips are overloaded. Remove resin with a dedicated cleaner or degreaser, never with an abrasive, which damages the coating and dulls the cutting edge.

Technical specifications

Questions and Answers