Bosch Hdg7 7-Piece Diamond Hole Saw Set Product Description The BOSCH line of countersinks are great for deburring and chamfering openings to pre-drilled holes. Great for electrical, plumbing and HVAC contractors. BOSCH countersinks cut varied materials cleanly and accurately. With standard high-speed steel and super hard titanium-coated bits, these countersinks perform great in even the toughest materials. Amazon.com The Bosch diamond grit hole saw is one of the latest additions to the Bosch hole saw product line. The hole saw features vacuum brazing technology for faster cutting and longer life than competitive products. As with Bosch's entire line of hole saws, these products are part of the patented Quick Change universal hole saw system, which lets you change hole saws in seconds. Bosch's new diamond grit hole saws start fast and simple, every time. Product Features Vacuum-brazed diamond grit cuts faster and lasts longer Segmented teeth reduce debris and heat AutoStart pilot bit is spring-loaded, retractable shaft allows walk-free cutting without a pilot hole Pilot bit offers unique grind that starts holes accurately every time Plastic case Set includes: (1) mandrel, (1) AutoStart pilot bit, hole saws: (1) 5/8 inch, (1) 1 inch, (1) 1-3/8 inch, (1) 2 inch, (1) 2-1/4 inch Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!