1-3/4" (44.5Mm) Forstner Drill Bit For Precise Woodworking With Durable, Plywood Product Details ??Product Size?Drilling diameter?44.5mm | 1-3/4", Round Shank Dia.: 10mm | 2/5", Drilling depth: 60mm | 2-3/8", Total length: 94mm | 3-11/16". ??High Quality?Positioning drills and blades are made of YG8, hardness ? 91HRA, bending strength up to 2200N/cm2, resharpenable. The shank rod is made of No. 45 steel, heat-resistant and corrosion-resistant. After quenching, the hardness is extremely high, effectively avoiding shank bending during use. ??2.00mm Super Thick Blade?Adopts industrial grade 2.0mm thickness YG8 blade, which extends the service life by 10 times compared to 1.3mm thick blade. ??Super Accurate?We use a fully automated production line, the product accuracy is up to 99%, the error of drilling holes is within 0.1mm, it is a good choice for high precision drilling work. ??Note? The drilling process needs to be kept vertical and it is recommended that a tool such as a vise be used to keep the material stable so that a smooth, accurately sized hole can be obtained. Set slow drilling speed till the drill bit is completely located, then gradually accelerate speed. The rotational speed is controlled at 2200~2500RPM for better effect. ??Widely Applications? The Forstner hole saw is perfect for wood,plastic,plywood,solid wood boards,MDF,plastics,furniture,door hinge,desk,etc.Note: Can not drill metal and non-ferrous metal. ??Warm Tips?For large-size Forstner drill bits (?60mm), it is best to use machines with good fixation performance for drilling operations, such as drill presses, bench drills, vertical drill presses and vertical electric drills, etc. If you must use a hand electric drill to operate , be sure to use a high-power electric hand drill, and it is best to use it with a vise with good fixation effect. Otherwise, good hole opening effect will not be achieved. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.