Bi-Metal Hole Saw Kit,30-Piece All Purpose Combination,Sizes Range:3/4'' to 4-3/4'',Increased Cutting Depth Ideal For Wood,Metal,PVC,Aluminum,Steel Tubes,Stainless Steel Sheet By Henson
*① Superior Value 30-Piece Bi-Metal Hole Saw Kit contains the Most Commonly Used 22 hole saws:3/4",7/8",1",1-1/8",1-1/4",1-3/8",1-1/2",1-3/4",2",2-1/8",2-1/4",2-1/2",2-5/8",3",3-1/4",3-3/8",3-5/8",3-3/4",4-1/8",4-1/4",4-1/2,4-3/4" and the Most Complete Accessories including 2 Arbors with Pilot Drills,3 Additional Pilot Drills,1 Ejector Spring,1 Arbor Adapter, 1 Allen Key and 1 10" extension. This kit is an All Purpose Combination of Plumbers Kit, Electricians Kit, and Industrial Kit.
*② Compatible with a wide range of materials including Aluminum, Non-ferrous metals, Stainless Steel sheet, Steel pipes and Profiles, Softwood, Hardwood, Plywood, OSB, MDF, Fiberglass, Gypsum board, Formica, Plaster, Chipboard which is ideal for Kitchen and Bedroom Installation, Car and House Repairing, Plumbing, Construction, Maintenance, Automotive Applications and the D-I-Y Enthusiast.
*③ Variable Toothing of 4/6 TPI configuration for a faster & smoother cut, less torque build-up, and enhanced chip removal. Progressive teeth strip allows a powerful bite on contact with irregular surfaces for rapid drilling and more aggressive cutting. Shaped gullets between two teeth accelerated chip clearance during drilling.
*④ The toughened Heavy-duty Backing Plate is constructed with thick steel providing outstanding concentricity that can reduce runout and vibration to ensure a smooth and precise cut. The special spring steel body also adds strength and rigidity minimizing vibrations for super clean cuts.
*⑤ 2” Hole Saw Depth providing Increased Cutting Depth. New Designed Side Slot increasing leverage for Faster, Easier Slug Removal. Ejector Spring for fitting over the pilot drill and pushing the core out of the Hole Saw after completion of the cut. Arbor Adapter adapts Small Arbor Thread (1/2”-20 UNF) to accommodate Large Hole Saw Thread (5/8”-18 UNF).
30-piece all-purpose combination Bi-metal hole saw kit from Henson Tools together the most commonly used hole saw sizes (22 pieces)and the most complete hole saw assembly including 2 Arbors with Pilot Drills,3 Additional Pilot Drills,1 Ejector Spring,1 Arbor Adapter and 1 Allen Key. All these are packed in a well organized and sturdy plastic case for easy storage and portable for all job environments.
Tips:
DO Operate hole saw at the recommended speed. See RPM table at 6th display pictures.
DO Apply sufficient pressure to cause continuous chip formation.
DO Set pilot drill far enough (about 1/8") beyond cutting edge of the saw to establish and maintain a solid center.
DO Use cutting oil or coolant to assure cleaner, cooler cuts and longer blade life.
DO Chuck the hole saw properly.
DO Hold the saw perpendicular to the surface of the material being cut.
DO Hold the hole saw drive unit firmly. A drill press or lathe is best when possible.
DO Be sure that drive pins on pin drive arbors are properly engaged.
DO Wear safety glasses and keep idle hands away from the sawing operation.
DON'T Run the hole saw too fast. Excessive speed will cause premature wear.
DON'T Allow the tooth tips to rub across the surface of the work. Rubbing increases heat dulls teeth, and will work harden some materials.
DON'T Operate a hole saw without a pilot drill or with a pilot drill set too shallow.
DON'T Operate a hole saw dry (except in cast iron). Dry cuts generate more heat and decrease the life of the hole saw.
DON'T Try to saw holes at an angle to the work surface. If the teeth contact the work unevenly, the hole saw will twist off center and break the pilot drill or saw.
DON'T Allow the drive pins to become loose and disengage from the hole saw cap.
DON'T Let loose clothing or long hair get near a revolving hole saw.
