Product Information
- Product Name: Diamond Spherical Concave Grinding Bit
- Material: Diamond Grit
- Head Diameter: 3‑25mm
- Shank Diameter: 6mm
Features
Crafted from premium diamond grit, this spherical concave grinding bit delivers outstanding hardness and durability. It supports high‑speed rotary operation for long‑time continuous work, resisting abrasion and break‑down effectively. Excellent thermal conductivity keeps the tool stable during grinding and guarantees consistent machining accuracy. Its inner spherical profile fits round workpieces such as beads perfectly, minimizing shake and offset. It realizes uniform sanding and polishing on bead surfaces, and multiple sizes are provided to satisfy diverse processing demands.
Application
This diamond concave grinding bit fits well for jewelry handicraft production. It can turn gemstone, jade, crystal, wood, bodhi , olive nut and other blanks into round beads. Coarse‑grit bits for shaping and fine‑grit bits for polishing work together to get smooth, well‑rounded beads with target dimension and precision. Besides bead making, it is suitable for watch accessories, optical component processing for high‑precision gem bearings and glass beads. It also works on mold production for spherical cavity and core finishing, smoothing curved surfaces to lift mold precision and service lifespan.
Package includes: Items based on your selection
Payment:
We accept Paypal only, It is fast, Easy and Safe.
Payment must be completed within 7 days.
PLEASE NOTE: S&H DOES NOT INCLUDE DUTIES, LOCATL TAXES OR ANY OTHER IMPORTATION FEES.
Please list your special requests (color, packages, etc.) in the PAYPAL NOTES SECTION when you make payment.
Shipping:
We Ship to Worldwide.
Orders processed within 24-48 hours of payment verification. it will take 15-25 days for delivery. but Customs will random inspection some parcel, so that's why some parcel need more than four weeks to arrive. Shipping time is only estimated and not guaranteed.
We only ship to confirmed PAYPAL addresses. Your PAYPAL address MUST MATCH your Shipping address.
Package to USA will Shipping by E-Package with Tracking Number(7-15 Days to Delivered). To other Countries will shipping by Post Air Mail without tracking number(ONLY when the order is over 20USD will supply Tracking Number Shipping Way!)(15-35 Days to Delivered)
Items are shipped via China Post Air Mail.
Guarantee:
Good Good quality. Buy with confidence!
If you are not satisfied when you receive your item, please return it within 7 days for a replacement or money back. Please contact me before you return it.
Not accept returning of electronic components.
Full refund after we receive our original item, Note: Return shipping is to be paid by the Buyer.
We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.
Full refund after we receive our original item, Note: Return shipping is to be paid by the Buyer.
We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.
