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Feature

HSS high speed steel material, high precision, smooth cutting, impact resistance, wear resistance.
5 sizes to meet your different needs: 16mm/0.62" , 18.5mm/0.72" , 20mm/0.78" , 25mm/0.98" , 30mm/1.18".
Cuts Steel, Stainless Steel, Copper, Brass, Aluminum, Iron Plate and Other Laminates In Seconds.
Perfect for Installing Locks, Knobs in Doors and Cabinets or Drilling Larger Diameter Holes Through.
Come with 6 Hex Wrenches for you easily firmly wrench the grub screw, remove, replace the drill.

Description

Specification:
Material: H.S.S
Outside Diameter:16mm/0.62'',18mm/0.71'',20mm/0.78'',25mm/0.98'',30mm/1.18''
Length:65mm/2.55''(Approx)
Diameter of Shank:9mm/0.35''

Features:
Can be used as car bus truck parking sensor radar syster drilling hole.
Cuts Steel, Stainless Steel, Copper, Brass, Aluminum, Iron Plate and Other Laminates In Seconds.
5 sizes to meet your different needs: 16mm/0.62" , 18.5mm/0.72" , 20mm/0.78" , 25mm/0.98" , 30mm/1.18".
Through a special heat treatment, sharp edge, high strength,especially impact resistance, wear resistance.
Perfect for Installing Locks, Knobs in Doors and Cabinets or Drilling Larger Diameter Holes Through Desks Etc.

Note:
Don't move the cutting pieces. Please fasten it firmly and cut it at a right angle.
Cut through the metal slowly without hitting it and the bigger a hole saw is, the fewer the number of rotations is.
Don't tighten the grub screws so hard, otherwise they will fall off.
Coolant is recommended. And clean up all debris before drilling.