7PC Mechanics' Kit includes: 

1 Arbor - 1/4"
1 Adapter - 1/4" to 7/16"
7/8" (22mm)
1" (25mm)
1-1/8" (29mm)
1-1/4" (32mm)
1-1/2" (38mm)

Slotted sidewall for easier material ejection. Solid Steel backing plate. Professional Grade cobalt M42 blade will cut a variety of materials. M42 ground tooth for improved metal cutting. 1-7/8" cutting depth.

Product Details
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Arbor Size	Includes Both
Type	Kits

13PC Journeyman's Kit includes: 

1 Small Mandrel - 1/4"
1 Large Mandrel - 7/16" hex shank
1 Mandrel Adapter
1 HSS Pilot Drill
3/4" (19mm)
7/8" (22mm)
1-1/8" (29mm)
1-3/8" (35mm)
1-1/2" (38mm)
1-3/4" (44mm)
2" (51mm)
2-1/4" (57mm)
2-1/2" (64mm)

Product Details
photo below
Arbor Size	Includes Both
Type	Kits

9PC Electrician's kit includes: 

1 Small Mandrel - 1/4"
1 Large Mandrel - 7/16" hex shank
1 Mandrel Adapter
7/8" (22mm)
1-1/8" (29mm)
1-3/8" (35mm)
1-3/4" (44mm)
2" (51mm)
2-1/2" (64mm)

Product Details
photo below
Arbor Size	Includes Both
Type	Kits

9PC Plumber's kit includes: 1 Small Mandrel - 1/4",

1 Large Mandrel - 7/16" hex shank
1 Mandrel Adapter, 3/4" (19mm)
7/8" (22mm)
1-1/8" (29mm)
1-1/2" (38mm)
1-3/4" (44mm)
2-11/16" (68mm)

Product Details
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Arbor Size	5/8"-18 Thread
Type	Kits

Single M42 Cobalt Bimetal Hole Saw with 1-7/8" cutting depth. Uses a 7/16" Mandrel with hex shank. Slotted sidewall for easier material ejection. Machined Solid Steel backing plate. Industrial Grade 8% Cobalt M42 ground Rugged Tooth Design excels in steel but will cut a variety of materials. Arbor Not Included.

Product Details
photo below
Arbor Size	5/8"-18 Thread
Size Range	2" - 2-7/8"
Type	Individual Hole Saws
Application	Multi-Purpose
Arbor Included	No
Depth of Cut	1 7/8" Deep Cut
Grade	Industrial
Teeth Per Inch	4/6 Variable Pitch
Tooth Edge Material Type	8% Cobalt M42