Bordo 40mm / 1-9/16″ HSS Cobalt Bi-Metal Hole Saw 7010-40

Description Bordo 40mm / 1-9/16″ HSS Cobalt Bi-Metal Hole Saw 7010-40 Recommended operating speed RPM:Diameter: 40mm / 1-9/16”Mild Steel: 220Tool S/Steel: 110Cast Iron: 145Brass: 290Aluminium: 330 Bi-metal Hole Saws:Bordo bi-metal hole saws are premium quality, general purpose saws suitable for a wide variety of materials and applications. The high-speed steel cobalt (HSS-Co) cutting edge provides shock resistant teeth and resists tooth strippage. 4/6 positive tooth configuration allows for fast, smooth cuts and less vibration. Features:HSS-Co Cobalt cutting edge4/6 variable tooth configuration48mm (1-7/8″) depth of cut5mm (3/16″) thick heavy-duty backing plate eliminates need for drive plate ApplicationsCreates holes for pipe and tubing installations, door lock installations, electrical conduit, hoses and antennasIdeal for plumbing, construction, aircraft, electrical, maintenance, and automotive applicationsUse in steel, aluminium, brass, cast iron, plastic, wood and a wide variety of other materialsCan be used in stainless steel with use of a cutting lubricant, reduced spindle speed and sufficient feed pressure to produce chips. Repetition hole cutting in stainless steel is best suited to Bordo XP and XP2 hole saws. Hints and tips for best hole saw use:The pilot drill must extend beyond the edge of the hole saw teeth by 1/8” (3mm).Always secure the material to be cut to ensure the turning action of the hole saw does not cause the work piece to spin or slip.Start the hole saw square to the work piece with steady feed pressure. Unbalanced tooth engagement will result in erratic hole saw action and tooth strip page.Follow the recommended standard hole saw operating speeds printed on the carton.When working at the upper ranges of the hole saws capacity, thy should be worked in and out to help clear chips.Use a cutting oil whenever possible, except with cart iron or wood, to help clear chips and lubricate the blade for longer life.Occasionally check the mandrel’s drive pins to prevent them from vibrating out of the hole saw’s drive pin holes.Always wear eye protection. Cutting processes may be noisy, especially in metals, so wear hearing protection. Always wear eye protection.