PLEASE NOTE: During the pandemic, USPS, FedEx & UPS are working with fewer employees, often causing backlogs of packages at their facilities and delays in delivery. We request your patience and understanding and pray that you stay safe and healthy. DIAMOND FLYWHEELS 4mm shankPresenting the leading source of diamond flywheels on eBay. With our present and past eBay listings, we have sold over 1500 pcs on eBay alone, till date. We thank our distinguished customers, many who are repeat buyers, for placing your trust on us by giving us your valuable business! Create exquisite, bright, unconventional designs or patterns on precious metals, ferrous & non ferrous alloys, for decoration. Uses - Jewelry designing (Wedding bands, bangles, charms, chains), Name plate engraving, Decorating bike parts, Sculptors, Hobbyists A professional tool with a diamond tip when used with a high speed revolving motor, produces super bright cuts on metallic items. Contains finest grade of industrial diamond securely set onto steel body. Proudly Made in USA. Retails for $ 65.00 to 95.00 in jewelry tools stores. This is your chance to get a quality product them at the lowest price. VARIATIONS: Diamond AngleDiamond Shape Cut Produced120 deg.Inverted `V' V Narrow130 deg.Inverted 'V' V Medium150 deg.Inverted `V' V Wide180 deg.Flat shapeFlat ConvexDome / ConvexShallow U / ConcaveNEW * Serrated / Lining / Combed shaped - The diamond has serrations which produce a beautiful 'comb' like effect. Choose from 5 lines (wider lines) or 8 lines (narrow lines)* 160 deg. - V shape - This is the widest V shape angle tool. It's shallow but creates a very wide cut. CAUTION: This is a highly professional tool. If used, incorrectly, can damage or break the diamond tip. For learners we recommend selecting a practice carbide flywheel too. Select from the drop down menu, while buying. As per industry standards this tool does not have any breakage / chipped warranty. Always wear safety goggles, and secure flywheel well in handpiece, before using this product. We take no liability for any accidental injury caused during the usage of this product.To be used only with high speed handpieces. Recommended motors - a) Micromotors with constant 35000 rpm or b) Foredom type Flex shaft motor CC / SR series / Grobet Flex Shaft / ARK Precision Flex Shaft with 1) # 35 handpiece or 2) # 30 handpiece. If using a jewelers flex shaft motor, then press pedal to max speed.We sell Flex Shaft / Micro Motors separately. Please inquire / look my other listings. Visit My eBay Store: JEWELRY TOOLS AND MOREJ e w e l e r s h e a v e n a jewelers' finest source for tools & supplies QUALITY & SERVICE AT GREAT PRICES! To enjoy a smooth and hassle free shopping experience, kindly read below.DESCRIPTION: We try to list product descriptions as accurately as possible. Packaging may vary than shown in listing. Measurements/dimensions wherever stated, are approximate only.SHIPPING:Shipping Charges (including free shipping):- Are for shipping to the 48 contiguous United States only. Buyers from Hawaii, Alaska or other countries please contact me for charges.Handling Time:- Orders are usually shipped within 2~3 business days of payment (except weekends and holidays or Echeck paid orders).Package transit time after shipping:-a) Within United States- From 3 to 10 business days depending upon carrier, type of service & destination. On rare occasions, First class mail packages may take longer to deliver. Please be patient and allow additonal time.b) International- Varies from 6~10 days till upto several weeks, depending on shipping service and custom delays.FEEDBACK:We strive my best to provide you with complete satisfaction of the product and service. If for any reason you are not satisfied, and have any problems, please contact me first before leaving a feedback. I will try my best to help you and sort out the matterCONTACTING / EMAILING:You may contact us through the Ebay Portal. Please allow 1-2 business days for us to respond.