Instructions / Assembly

• Keep hole saw vertical with cutting object when in use in corded or cordless drill.
• For best performance, follow the recommended RPM based on selected material per table below.
• If drilling through metal, we highly recommend the use of good grade of cutting oil to assure cleaner cut and
extend the life of the hole saw.
• Do not turn off power during drilling. Sudden loss of power may cause damage to the cutting edge of hole saw.
• When drilling with larger hole saw reduce your drilling force and drilling speed.
• Operator should feed the saw in and out to allow for material shavings to clear out of hole being cut.
Pipe Tap & Pipe Entrance References
Pipe taps are leveraged for threading holes created by bi-metal hole saws to receive a threaded pipe. Reference the
product charts for proper selection of bi-metal hole saw for pipe tap.
Pipe entrance is the diameter for the hole through which the pipe of given diameter will pass through during
installation or repair.
Pipe size is defined as the inside diameter.
Tubing size is defined by the outside diameter. To cut an entrance hole of a given tubing diameter, the same diame
-
ter hole saw should be used.
Bi-Metal Hole Saw Operating Speeds (RPM Table)
Diameter
Pipe Tap
Diameter
Pipe Entrance
Diameter
Mild
Steel
Tool S.S.
Cast
Iron
Brass Aluminum Wood
Inches MM Inches MM Inches MM
9/16 14 580 300 400 790 900 3000
5/8 16 550 275 365 730 825 3000
11/16 17 500 250 330 665 750 3000
3/4 19 1/2 13 3/8 10 460 230 300 600 690 3000
13/16 21 390 195 260 520 585 3000
7/8 22 3/4 19 1/2 13 390 195 260 520 585 3000
15/16 24 350 175 235 470 525 2700
1 25 350 175 235 470 525 2700
1-1/16 27 325 160 215 435 480 2700