Morse® Master Cobalt® Hole Saw, 3-1/2 Inch Diameter, 1-1/2 Inch Cutting Depth, 4/6 TPI, 1/4 Inch Dia x 3-1/16 Inch L Drill, Bi-Metal Body, Variable Pitch Tooth, Use Arbor: 4XJ21, 4XJ24, Applicable Materials: Wood, Plastic, Nail Embedded Wood, Plywood, Stainless Steel and Machinable Metal
- Positive rake teeth provides better chip clearance
- 1 1/2 Inch cutting depth will cut through a 2 x 4
- Requires a separate arbor
- Variable pitch teeth reduces friction and heat
- Expanded gullets allow for faster cutting and increased blade life
- Better tooth match for better chip clearance and smoother cutting
- Reinforced tooth flank makes teeth stronger for longer life and resistance to tooth strippage
