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5PCS HSS M42 Bi Metal Hole Saw Set (HS-S5)

Heat resistant high-speed steel teeth welded to a strong alloy body and cap for exceptional durability.

Sizes: 7/8", 1-1/8", 1-3/8", 1-3/4", 2", and 2-1/2".
3/8" hex arbor and bit with adaptor.
7/16" hex arbor and bit with twin-cam mechanism that locks saw to arbor for solid, fast cutting.
Two replacement bits.

1.M3/M42 HSS bi metal edge welded to alloy steel back for heavy duty cutting.High speed teeth electron welded to a high alloy steel body ensuring maxium durability and a long working life.
2.4/6TPI variable teeth ,4/6sharp aggressive teeth ,6 TPIC consant teeth
3.Bimetal Hole Saws with HSS teeth are rugged cutting tools designed to cut accurate holes in machinable materials up to 38mm thick.
4.Cutting depth to 1-3/8"(35mm),1-1/2"(38mm),1-3/4"(44mm),1-27/32"(47mm);
5.Diameters from 9/16"(14mm) to 9-27/32"(250mm)
6.Cuts through stainless steel and other materials pipe ,Nail-embedded wood ,hard wood floors ,plywood and plastics
7.all the specifications for arbored hole saws are the same as hole saws. there i an extra charge for the pilaots on the arbored hole saws
8.cutting safely and efficiently, the best way to cut large holes, clearing the chips in touch materials
9.can be used in portable electric or pneumatic tools, vertical drill machines, lathe, boring/milling machines and ohter machine others