SIERRA Resin-Filled Diamond Cup Wheel – 4 in., Fine Grit
SIERRA Resin-Filled Diamond Cup Wheel – 4 in., Fine Grit
The SIERRA Resin-Filled Diamond Cup Wheel is a 4 in. fine-grit diamond cup wheel for refining ground stone surfaces.
Fine is the last of the three grades in this line – coarse, medium, fine – and it is not there to remove material. Its job is to take out the scratch pattern the coarser wheels leave, so the first polishing pad starts on an even surface instead of chasing grinder marks. The resin filling the gaps between the diamond segments gives a near-continuous face, which is what stops a cup wheel gouging at this stage. The grit number behind 'Fine' is not published, and neither is the mounting thread or a maximum RPM.
Key Features
- Fine grade – the finest of the three grades, for refining rather than removing
- Resin fill between the segments – near-continuous face, no gouging into a surface you are about to polish
- 4 in. wheel
- Grit number, mounting thread and maximum RPM are not published and are not stated here
What's Included
- 1 x 4 in. cup wheel
Who Is This For?
Fabricators cleaning up after the coarse and medium wheels, immediately before polishing pads go on. It is the wrong wheel for bulk stock removal – a fine wheel loads up and burnishes instead of cutting – so start with the SIERRA Resin-Filled Diamond Cup Wheel – 4 in., Coarse Grit. If you need a resin-filled cup wheel with a published wet-or-dry rating, the WEHA Blitz Resin Filled Diamond Cup Wheel – 4 in., Medium Grade states it.
Frequently Asked Questions
What is a fine-grit cup wheel used for?
Refining a ground surface – removing the scratch pattern left by coarser wheels so that polishing can start on an even surface. It is not intended for bulk material removal.
What does resin-filled mean on a cup wheel?
The spaces between the diamond segments are filled with resin, so the wheel presents a near-continuous face that resists gouging and leaves a smoother surface than an open-segment wheel.
Which grade should I start with?
Coarse, if there is material to remove. The three grades in this line run coarse, medium and fine, in that order.
What size is this wheel?
4 in.