HSS Hole Saw Kits for Metal, Rocaris 15 pcs High-Speed Steel Hole Saw Cutting Kit Drill Bits Opener Cutter Tool for Stainless Steel,Copper, Iron 15~53mm
Brand: Rocaris
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Three groups of edge, each blade in cutting process is responsible only for 1 / 3 of the workload, and inside each edge also has a cutting edge, also due to the edge,respectively, the burden of the characteristics of part of the cutting work, making the drill hole is not easy to produce the phenomenon of edge collapse.

Specifications:
Material:alloy
Color:silver
Length:65-70mm
Outside diameter Size: 15mm/0.59", 16mm/0.63", 18mm/0.71", 20mm/0.79", 21mm/0.83", 22mm/0.87", 25mm/0.98", 26mm/1.02", 28mm/1.10", 30mm/1.81", 35mm/1.38", 40mm/1.57", 45mm/1.77", 50mm/1.97", 53mm/2.09".
Chuck size:10mm
Appliacation:Can be used for bench drill, electric drill chuck with the use of machine tools

Features:
?Each edge is a part of the characteristics of the cutting work, making the hole is not easy to produce the phenomenon of collapse
?The stainless steel plate, steel, casting, Aluminum Alloy, iron and other kinds of metal plate drilling
?Chip removal, with excellent performance, sharp edge, wear-resistant

Note:
This product is not easy to cut a relatively thin metal material, can be cutting within the 2-5mm
stainless steel plate and the metal plate?15mm

Package include:
15 x Drill Bit Holes
The gears is made from HSS and the rigidity varies from the hole saw has a twist drill bit inside, which is undetachable.
64HRC to 65HRC. Sharp gears and anti-cutting with lower consumption make the product a long service life.
Carbide teeth for fast cutting of clean, round holes.Suitable for hand held electric drill, stand motor-driven drilling machine and mobile ribbon type magnetism drilling machine.
Cuts quick, precise holes in stainless steel, mild steel, iron, copper and brass.Can drill about 20mm depth for the wood, and can drill about 5mm for the stainless steel
Size of these 15pcs hole saw: 15mm/0.59", 16mm/0.63", 18mm/0.71", 20mm/0.79",21mm/0.83", 22mm/0.87", 25mm/0.98", 26mm/1.02", 28mm/1.10", 30mm/1.81", 35mm/1.38", 40mm/1.57", 45mm/1.77", 50mm/1.97", 53mm/2.09".