Top 8 Best 28mm Drill Bit

High Speed Steel tool - 28mm cutting diameter. Good for most general purpose applications, featuring a combination of hardness and toughness for wear resistance. Reduced Shank - Expanding the size range capacity of a portable drill chuck. Common flute and overall length for minimal adjustment during tool changes. Black Oxide Finish - Black oxide treatment adds lubricity. Small pockets on the surface of the tool that act to hold coolant near the cutting edge. Wide Application - Design for drilling in low and medium tensile strength materials, such aluminum, iron, copper, brass and metal. Please Note To make clean and precise holes, water is required for lubrication and cooling when drilling metals. Increased use of water lubrication will extend drill bit life.

1.Cutting edge is made of Top-class HSS High Speed Steel.. 2.Through special heat treatment, the cutting edge is sharp with high intensity.. 3.Good cutting effect of ferrous and non-ferrous metals, be able to process stainless steel plates below 3mm. 4.Applicable to Togu Door Viewers whose brass pipe diameters are 1-91640mm and 2-1655mm such as TG-3828 NGYG series, TG-5028 NGYG series. 5.High precision, stable cutting, strong shock resistance, good abrasion resistance.

Specifications Drilling dia. 28mm shank size 8mm drilling depth 60mm total length 90mm. Round shank, cemented carbide cutter and solid hardened steel body.. Applications Can be used for drilling holes on wood and plastic products, furniture, door hinge. Used on cutting wood, plywood, solid wood boards, MDF, plastics, fiberglass etc.. Forstner drill bit is for industrial purpose. Features Tungsten carbide cutting tip with special heat treatment for sharp cutting edge, high hardness, non-burrs and durable use. Arc curve design head for easy chip-removal, more efficient perforation. How To Use Suitable for bench drill, vertical drilling machine, CNC carving machine. Processing hardwood or other hard materials should be injected with water to improve the quality and accuracy of drilling, and extend the life of the hole opener.. Tips Maximum speed 2000rpm. Used on desktop fixed equipment, and can NOT be used on handheld power tools such as hand drill or electric drill. Can not drill metal and non-ferrous metal. To avoid causing damage, be sure no nails or other metal objects in wood before drilling. The cutting edge and tip of the opener should be sharpened in time..

Hole saw is made of HSS high speed steel, impact resistance, wear resistance.. 28mm Hole Saw cut clean, round holes in iron, aluminum plate, alloy plate, plastic sheet.. Hole drill bit is with special heat treatment, sharp edge, high strength.. Perfect for Installing Locks, Knobs in Doors and Cabinets or Drilling Larger Diameter Holes Through Desks Etc.. Hole Saw is suitable for hand-held electric drill, vertical electric drill and mobile belt magnetic drilling machine..

High Speed Steel tool - 28mm cutting diameter. Good for most general purpose applications, featuring a combination of hardness and toughness for wear resistance. Reduced Shank - Expanding the size range capacity of a portable drill chuck. Common flute and overall length for minimal adjustment during tool changes. Black Oxide Finish - Black oxide treatment adds lubricity. Small pockets on the surface of the tool that act to hold coolant near the cutting edge. Wide Application - Design for drilling in low and medium tensile strength materials, such aluminum, iron, copper, brass and metal. Please Note To make clean and precise holes, water is required for lubrication and cooling when drilling metals. Increased use of water lubrication will extend drill bit life.

High Speed Steel tool- 28mm 1.10-inch cutting diameter. Cutting Edge Length 70mm 2.76-inchOverall Length 155mm 6.1-inch. Good for most general purpose applications, featuring a combination of hardness and toughness for wear resistance.. Reduced Shank- Expanding the size range capacity of a portable drill chuck. Common flute and overall length for minimal adjustment during tool changes. Black Oxide Finish- Black oxide treatment adds lubricity. Small pockets on the surface of the tool that act to hold coolant near the cutting edge. Wide Application- Design for drilling in low and medium tensile strength materials, such aluminum, iron, copper, brass and metal. Please Note- To make clean and precise holes, water is required for lubrication and cooling when drilling metals. Increased use of water lubrication will extend drill bit life.

TITANIUM HIGH SPEED STEEL classic high speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, copper, stainless steel and many other types of sheet metal. 135 SPLIT POINT TIP increases cutting speed with self-centering and prevents walking. TWO-FLUTE DESIGN clears chips faster and allows particles to escape easily. TRI-FLATTED SHANK fits into power tools chuck securely and eliminates slip. SET INCLUDES Bit 1 6 steps 316, 14, 516, 38, 716, 12 Bit 2 13 steps 18, 532, 316, 732, 14, 932, 516, 1132, 38, 1332, 716, 1532, 12 Bit 3 9 steps 14, 516, 38, 716, 12, 916, 58, 1116, 34.

Hex shanks will not slip and fit 38-inch drill chucks. Provides chatter-free and faster cutting results. Provides smoother cutting. Hard to find metric sizing.

Specifications Drilling dia. 28mm shank size 10mm drilling depth 52mm total length 85mm. Round shank, cemented carbide cutter and solid hardened steel body.. Applications Can be used for drilling holes on wood and plastic products, furniture, door hinge. Used on cutting wood, plywood, solid wood boards, MDF, plastics, fiberglass etc.. Forstner drill bit is for professional purpose. Features Tungsten carbide cutting tip with special heat treatment for sharp cutting edge, high hardness, non-burrs and durable use. Arc curve design head for easy chip-removal, more efficient perforation. How To Use Suitable for bench drill, vertical drilling machine, CNC carving machine. Processing hardwood or other hard materials should be injected with water to improve the quality and accuracy of drilling, and extend the life of the hole opener.. Tips Maximum speed 2000rpm. Used on desktop fixed equipment, and can NOT be used on handheld power tools such as hand drill or electric drill. Can not drill metal and non-ferrous metal. To avoid causing damage, be sure no nails or other metal objects in wood before drilling. The cutting edge and tip of the opener should be sharpened in time..

Widely UsedPerfect Step Drill Bits suitable for drill holes in various material within 3mm0.12 inch Iron Plate, Copper Plate, Aluminum Plate within 5mm0.2 inch Wood, PVC sheet, Insulation Boards. Not suitable for hard and brittle materials such as stainless steel, glass, tile floors, walls etc.. MaterialHSS combined with a titanium coating. More capable and durable.. Easy DrillingTwo-Flute Design for smoother cutting. High Step design let you feel the stop and never drill bigger in mistake. SET INCLUDESBit 1 5 steps 4-12mm 4mm, 6mm, 8mm, 10mm, 12mm Bit 2 9 steps 4-20mm 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm Bit 3 15 steps 4-32mm 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm,30mm,32mm. Package Included 3-Piece HSS Groove Step Drill Bit 4-12 4-20 4-32mm . 14 Hex shaft drives are suitable for all kinds of for home DIY power drills..