M42 HSS Hole Saw Set, Ankoow 9Pcs 16-38mm Heavy Duty Hole Saw Tooth Cutting Opener Drill Bit for Wood Aluminum Iron Sheet Pipe Plastic

Description: 9pcs M42 Drilling Hole Saw Cutting Kit Opener Hole Saw Set For Aluminum Iron Sheet Pipe Plastic Wood Heavy Duty Ceramic Drill Bit Cutter Features: Double metal hole with high quality M42 material, durable, not easy to fall off the edge. Widely used in plate hole, home wood, galvanized pipe, fire pipe, plastic, gypsum board and other opening operation. Applicable to the pistol drill, bench drill, vertical drilling machine etc.. The precision of the concentric degree, so that the teeth edge of the uniform, to extend the life of the hole. Specification: Material: M42 hss steel Size:16mm, 18mm, 20mm, 22mm, 25mm, 30mm, 32mm, 35mm, 38mm (5/8-Inch,45/64-Inch,25/32-Inch,55/64-Inch,1-Inch,1-3/16-Inch,1-1/4-Inch,1-3/8-Inch,1-1/2-Inch) Package Included: 9* M42 Drilling Hole Saw Usage Suggestion: Hole saw may become overheated and get damaged or even burned up due to fast rotary friction, we suggest customers to use cutting fluid to keep the hole saw cold during usage. Keep the drill be stable when drilling, otherwise the centre bit may get snapped due to excessive shaking. Start drilling with a slow drill rotary speed, or the centre bit may be shattered on first use. The larger the metal hole saw is, the slower the drill rotary speed should be, this way can protect the centre bit from getting snapped.

• [9 SIZES HOLE SAW IN 1 SET]: 16mm, 18mm, 20mm, 22mm, 25mm, 30mm, 32mm, 35mm, 38mm. Each hole saw drill bit is individually packaged for easy carrying and finding the required specifications.
• [HIGH-QUALITY MATERIALS]: Hole saw set made of M42 HSS steel and BI metal, the blade is sharp with high hardness, stronger wear resistence and long service life.
• [WIDE APPLICATION]: Suitable for Pistol Drill, Bench Drill,Vertical Drilling Machine etc. Widely used in Plate Hole, Home Wood, Galvanized Pipe, Fire Pipe, Plastic, Soft metal, Gypsum Board and Other Opening Operation. NOTE: Not recommend used in hard wood, hard metal and stone.
• [SMOOTH AND FAST CUTTING]: Teeth are sharp with little vibration, pressurized spring Improves the removal speed of cylindrical iron filler in the hole and makes chip evacuation easier. And the hole saw kit can be quickly balanced, making the operation more stable.
• [WARM TIPS]: Keep the hole saw drill bit be stable when, the larger the hole saw is, the slower the drill rotary speed should be, this way can protect the centre bit from getting snapped. And we recommend that customers use cutting fluid to keep the hole saw cold during use to prevent overheating, damage or even burned up.