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20mm Hole Saw, 1/4" Cutting Diameter M42 Bi-Metal HSS Blade with Arbor for Aluminum Iron Stainless Steel Plate

KWD 3
Size20MM
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Special Features

  • Hole saw size: total length: 87.5mm/3.44”; depth: 31mm/1.18”; shank diameter: 8.5mm/0.33”
  • With a non-adhesive clean edge design, this hole saw cuts smoothly and easily. Once the drilling is completed, the spring on the drill bit will automatically push the disc out of the saw.
  • Made of M42 high speed steel. Heavy duty, durable and rustproof. Rugged and reusable for easy work on cornplates and plastics.
  • The concentricity of precision makes the tooth edge uniform and prolongs the service life of the hole.
  • Suitable for pistol drills, bench drills, vertical drill machine. Widely used in plate holes, household wood, galvanized pipe, fire hose, plastic, gypsum board and other opening operations.

Description

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 hole saw is, the slower the drill rotary speed should be, this way can protect the centre bit from getting snapped.

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