S&F STEAD & FAST Annular Cutter Set - M2AL high speed steel HSS 13 Pcs 716 to 1116 Inch

Annular cutters made with super tough M2AL high speed steel HSS for durability wear resistance high efficiency and superior service life 11 HSS core drill bit cutting tool assortment set with Outside Diameter in inches 71612916111658341316781516111161 inch cutting depth for each drill cutter CNCmachined high precision annular drill bit set with 34 inch Weldon shank with 2 flats for secure clamping and edge finish designed for smooth reamed burrfree edges of drilled holes Use a firm steady pressure throughout the cut for best results IMPORTANT Drill single layers of materials only This series of annular cutter is NOT designed for drilling of multiple layers Avoid premature failure of cutter by using a low feed rate when engaging the bit with the work piece especially for the smaller cutters Increase to recommended rate once bit is about 23mm in Secure workpiece firmly before drilling If workpiece is less than 12 thick use a 38 steel sheet under it to ensure the magnetic drill will grip it firmly There should be no movement between the workpiece and bit during drilling Compatible with various brands of magnetic drills including Alfra BDS Dewalt Euroboor Hougen Ruko Caution if you want to use this annular cutter on a drill press you need an extra annular cutter arbor for the drill bit cutter Arbor is not included in this pack Sturdy goodlooking case holding an assortment of 11 annular bits 2 pilot pins and a bonus hex wrench