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Product Name : Rotary Grinding Stone Bits
Tip Shape : Cylinder Shape
Material : Chrome Corundum
Head Diameter : 10mm / 0.39”
Head Length : 25mm / 0.98"
Shank Diameter : 3mm / 1/8"
Total Length : 60mm / 2.36"
Color : Pink, Silver Tone
Feature:
Made of chrome corundum, wear resistance, high hardness and impact resistance, sturdy enough for fine detail work.
The grinding stone bits has high hardness, good wear resistance, uniform particles, and can serve you for a long time.
Can be installed on the electronic grinder, engraving machines, hanging mill and hand electric drill.
Rotary Grinding Stone Bits Suitable for various mould, glass, medical equipment and metal.
Package Included:
30Pcs Rotary Grinding Stone Bits
neal
2024-12-21 15:48:15
These are fine grit, but most of them have a ton of runout (non-concentric wobble). I'm using these in my RX8 engine rebuild for cutting the side seals. These are fine enough for my needs and they fit nicely into my side seal cutting jig made from an old rotor. Three of the twelve are true enough to use in my jig, but the others will be relegated to other metal grinding tasks and not used in the rotary tool drill press setup shown in the picture. For the price, not bad, but I'd like more of them to have near zero runout.
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