Nineteen pieces plumbers professional hole saw set contains thirteen the most frequently used plumbers hole saw sizes, along with two arbors, twelve inch arbor extension and mandrel adaptor. These high speed steel bi-metal saws have specially hardened variable pitch teeth for fast smooth cutting. Bi-metal saws offer increased safety as they will not shatter under load.  

These hole saws are used to cut perfect holes in a wide variety of materials, including wood, chipboard, plywood, non-laminated plastics, plasterboard and non-ferrous metals. Suitable for use with most variable speed power drills. The set is supplied with a sturdy plastic case. 

Features:

• Drills quickly and steadily through a wide variety of construction materials
• Designed to cut chipboard, plywood, plastics, plasterboard and non-ferrous metals
• Power drill bit adaptor with replaceable pilot HSS drill bits
• Large adapter includes a socket safety locking tabs
• Kit includes thirteen most common socket saw bits, two arbors, 12 inch extension and plastic storage case

Specifications:

• Model: 19P-HSS-HS
• Made of: HSS bi-metal 
• Pitch type: variable
• Imperial sizes: 3/4in, 25/32in, 7/8in, 1in, 1-1/8in, 1-1/4in, 1-3/8in, 1-1/2in, 1-3/4in, 2in, 2-1/4in, 2-11/16in and 3inch
• Metric sizes: 19mm, 20mm, 22mm, 25mm, 29mm, 32mm, 35mm, 38mm, 44mm, 51mm, 57mm, 68mm, and 76mm 
• Cutting depth: 1-1/4in or 32mm
• 7/16 hexagon arbor with  locking tabs for 1-1/4 to 6inch or 32mm-152mm saw blades
• 3/8 hexagon arbor without locking tabs for 9/16 to 1-3/16inch or 14-30mm saw blades 
• 12 inches long, 7/16 inch male to female arbor extension
• The drill bits are made of HSS steel
• Includes plastic storage case
• Weight of the set: 5.7Lbs or 2.58kg

Package includes:

• Thirteen saw blades variable sizes form 3/4 to 3inch
• Two different size arbors
• Twelve inches long arbor extension
• Mandrel adaptor ring
• Two hexagon key wrenches
• Plastic storage case