HSS Metal Hole Cutters Drill Bits

16mm-80mm 16mm, 17mm, 18mm,19mm, 20mm, 21mm, 22mm, 23mm, 24mm,

25mm,26mm,28mm, 30mm, 32mm,33mm, 35mm,38mm,40mm, 42mm,45mm, 48mm, 50mm,

53mm,55mm, 60mm, 63mm,65mm,70mm, 75mm, 80mm.

Products Specification:

Size : 12-80MM

Total length: 65-70mm

Shank: 8mm hex non-slip handle

Utility: could be applied to drill 2MM stainless steel, metal plate, galvanized pipe, plastic board, aluminum alloy thin sheet.

Advantages & Application:

Made of HSS9341 high speed steel. Reasonable design, high strength and sharp blade, blade tooth computer indexing, high speed grinding and forming. High precision cutting fast and stable, good wear resistance, opening and labor.

Can be used in ferrous and non-ferrous metal hole, excellent results (available to aluminum alloy, thin stainless steel, iron, copper, and other plate hole)

Keep the edge temperature COOL by filling in coolant constantly.

Use an appropriate drilling machine.

Instructions for using:

Smooth operation: To avoid the impact and to prolong the service life please secure with an opening speed:

45MM 450R/min 46MM-80MM is less than or equal to 200R/min less than or equal to or above the following 80MM should be correspondingly more slowly and must add cooling fluid while drilling.

Please see our speed chart for more information.

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