Technical Information
Reference ChartHole Saws
order number
diameter pipe tap dia. pipe entrance dia 1887
inch mm inch mm inch mm M3 M42
Tech Tip
9/1614————C25058C25000
5/816————C26149C26121
11/1617————C26102C25002
3/4191/2133/810C25061C26113
—20————C25062C25004
13/1621————C26106C26105
7/8223/4191/213C25064C25006
*7/8223/4191/213C24998C24999
15/1624————C25065C25007
125————C25066C26101
1-1/1627————C25067C25009
1-1/8291253/419C25068C26103
1-3/1630————C25069C25011
1-1/432————C25070C25012
1-5/1633————C25071C25013
1-3/835——125C26108C25014
1-7/1637————C25073C25015
1-1/2381-1/432——C25074C25016
1-9/1640————C25075C25017
1-5/841————C25076C25018
1-11/1643————C25077C26104
1-3/4441-1/2381-1/238C25078C26107
—45————C26120C25021
1-13/1646————C25080C25022
1-7/848————C25081C25023
—50————C25082C25024
251——1-1/238C25083C25025
2-1/1652————C25084C25026
2-1/854————C25085C25027
—55————C25086C25028
2-1/457251——C26109C25029
2-5/1659————C25088C25030
2-3/860————C25089C25031
2-1/264——251C25090C25032
2-9/1665————C25091C25033
2-5/8672-1/264——C25092C26111
—68————C25093C25035
2-3/470————C26110C25036
2-7/873————C26112C25037
—75————C25096C25038
376——2-1/264C25097C25039
3-1/879————C25098C25040
3-1/483376——C25099C26115
3-3/886————C26116C25042
3-1/289————C25001C25043
3-5/892——376C25102C25044
3-3/4953-1/289——C25103C25045
3-7/898————C25104C25046
—100————C25105C25047
4102————C25106C25048
4-1/8105——3-1/289C25107C25049
4-1/41084102——C26118C25050
4-3/8111————C25109C25051
4-1/2114————C26117C25052
4-3/41214-1/21144102C25111C26119
5127————C25112C25054
5-1/2140——5127C25113C25055
5-3/4146————C25114C25056
6152————C25115C25057
• Always wear eye protection.
• Always be sure that the pilot drill extends beyond
the cutting edge of the saw by at least 1/8".
• Be sure to secure the material to be cut to keep it
from spinning or slipping.
• Start the cutting process with the saw square
to the material being cut, this will ensure that all
teeth begin to cut at the same time and will help
prevent premature wear and damage to the saw.
• Follow the recommended operating speed for the
saw size and the material being cut.
• Operator should feed the saw in and out to allow
the material shavings to clear out of the hole
being cut.
• Cutting oils or lubricants should be used to
extend the life of the saw, except when cutting
wood or cast iron.
• Occasionally check the mandrel's drive pins to
be sure they are still fully engaged in the saw and
that they have not vibrated out of the drive holes
in the saw.
• When sawing in wood, finish the hole from the
opposite side to prevent splintering. Once the
pilot drill has broken through the other side, you
can use this hole to guarantee you are in line with
where you have already started cutting.
• When sawing resistant and difficult to cut
materials, drill a couple of small holes on the
circumference to allow chip to clear.
• Keep an oil soaked sponge inside the hole saw
if you:
— Cannot lubricate in the normal way
— Operate in stainless steel
— Operate in a vertical position from above.
Pipe and Tap Entrance
• Pipe taps are used for threading holes created by
a hole saw to receive a threaded pipe. Reference
the product charts for proper selection. To cut a
hole for a 1" pipe tap, select a 1-1/8" hole saw.
• Pipe entrance is the diameter for the hole through
which a pipe of a given diameter will pass during
installation or repair.
• Pipe size is defined by the inside diameter. To cut
a hole through which a 3/4" pipe may be passed,
a 1-1/8" hole saw is used.
• Tubing size is defined by the outside diameter. To
cut an entrance hole of a given tubing diameter,
the same diameter hole saw should be used.
Tech Tip
*1-1/2" (32mm) cutting depth
