Page 11
For technical questions, please call 1-800-444-3353.
Item 67616
metal Drilling tips
1. Use high speed steel, carbide or
specialty bits for metal drilling.
2. Secure work piece to keep it from moving
during the drilling operation.
3. Use a punch (not included) to create
a dimple for the bit to start.
4. Start by drilling slowly to keep bit from
wandering away from your starting point.
5. As hole is established, increase speed. Do not
use so much pressure that bit heats up. This
can damage bit and create irregular hole. For
hard metal, use cutting oil to keep bit cool.
6. When drilling large holes in metal, start
by drilling a smaller pilot hole, then using
a larger bit for the final size hole.
Wood Drilling tips
1. Use high speed bits or bits specially
designed for wood drilling, such as brad
point, spade bits, forstner bits, etc.
2. Secure work piece to keep it from moving
during the drilling operation.
3. Start by drilling slowly to keep bit from
wandering away from starting point.
Increase speed as hole is established.
4. To prevent or reduce “break out” when bit
penetrates work piece, clamp a piece of
scrap material to back of work piece.
5. Do not lock Trigger in the ON position,
as the bit can easily jam in wood and
motor must be stopped quickly.
Concrete Drilling tips
1. Use carbide or specialty bits for concrete drilling.
2. Rock and masonry are generally drilled in
the hammer (impact) drilling mode.
3. When drilling in walls, start with regular drilling and,
once tile is pierced, continue with hammer mode.
nOtE:
In deep bore holes, occasionally pull
the drill bit out to remove dust and chips.
Recommended Drill Bit Sets
The chart below lists applicable Drill Bit sets that are available from Harbor Freight Tools.
SKu
name
Drilling
application
Sizes
32925
29-Piece High Speed Steel Drill Bit Set
Metal
1/16" to 1/2" by 64ths
40547
20-Piece 1/8" Shank Diamond Point Set
Metal
1-3/4" overall length
90029
5-Piece 18" Extra-Long M2 High Steel
Drill Bit Set
Metal
1/8", 3/16", 1/4", 5/16" and 3/8" straight shank bits
1637
7-Piece Brad Point Wood Bit Set
Wood
3" to 6" Length; Sizes: 1/8", 3/16", 1/4", 5/16", 3/8",
7/16", and 1/2" bits
33449
3-Piece 25" Long Wood Bit Set
Wood
5/16", 3/8", 7/16"
35837
29-Piece Brad Point Wood Drill Bit Set
Wood
Length: 12"; Sizes: 1/16" through 1/2" by 64ths
42256
5-Piece Quick Change Masonry Drill Bits
Concrete/Masonry
5/32", 3/16", 1/4", 5/16" and 3/8"
46754
5-Piece 12" SDS Masonry Bit Set
Concrete/Masonry
5/16", 3/8", 1/2", 3/4", and 1"
46755
5-Piece 16" SDS Masonry Bit Set
Concrete/Masonry
5/16", 3/8", 1/2", 3/4", 1"
Sa
FE
tY
Op
ER
ati
O
n
m
aint
Enan
CE
SE
tup
