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Multi-Purpose Drill Bits

Step Drill Bits

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irwin_unibit_10220
Irwin®
Irwin® Unibit® 10220 Hole Enlarging Step Drill Bit, 9/16 in Dia Min Hole, 1 in Dia Max Hole, 8 Steps, 8 Hole Sizes, 7/16 in Shank
PET20MFG #:10220
Made in the USA.
45 In Stock
$59.99 / EACH
irwin_unibit_10231
Irwin®
Irwin® Unibit® 10231 Step Drill Bit, 1/8 in Dia Min Hole, 1/2 in Dia Max Hole, 13 Steps, HSS, 13 Hole Sizes, 1/4 in Shank
PET1MFG #:10231/1
Made in the USA.
76 In Stock
$25.49 / EACH
irwin_unibit_10232
Irwin®
Irwin® Unibit® 10232 Self-Starting Step Drill Bit, 3/16 in Dia Min Hole, 1/2 in Dia Max Hole, 6 Steps, 6 Hole Sizes, 1/4 in Shank
PET2MFG #:10232/2
Made in the USA.
15 In Stock
$27.49 / EACH
irwin_unibit_10233
Irwin®
Irwin® Unibit® 10233 Self-Starting Step Drill Bit, 1/4 in Dia Min Hole, 3/4 in Dia Max Hole, 9 Steps, 9 Hole Sizes, 3/8 in Shank
PET3MFG #:10233/3
Made in the USA.
36 In Stock
$46.99 / EACH
irwin_unibit_10234sm
Irwin®
Irwin® Unibit® 10234SM Step Drill Bit, 3/16 in Dia Min Hole, 7/8 in Dia Max Hole, 12 Steps, HSS, 12 Hole Sizes, 3/8 in Shank
PET4MFG #:10234/4
Made in the USA.
43 In Stock
$52.99 / EACH
irwin_unibit_10235
Irwin®
Irwin® Unibit® 10235 Step Drill Bit, 1/4 in Dia Min Hole, 1-3/8 in Dia Max Hole, 10 Steps, HSS, 10 Hole Sizes, 7/16 in Shank
PET5MFG #:10235/5
Made in the USA.
42 In Stock
$115.99 / EACH
irwin_unibit_10311
Irwin®
Irwin® Unibit® 10311 Step Drill Bit, 7/8 in Dia Min Hole, 7/8 in Dia Max Hole, HSS, 1 Hole Sizes, 3/8 in Shank
PET11MFG #:10311/11
Made in the USA.
Check other locations for availability. Order exceeds stock available at our Anchorage Distribution Center.
$46.99 / EACH
irwin_unibit_10311zr
Irwin®
Irwin® Unibit® 10311ZR Step Drill Bit, 7/8 in Dia Min Hole, 7/8 in Dia Max Hole, HSS, 1 Hole Sizes, 3/8 in Shank
PET011MFG #:10311ZR
Made in the USA.
9 In Stock
$62.99 / each
irwin_unibit_10220
Irwin®
Irwin® Unibit® 10220 Hole Enlarging Step Drill Bit, 9/16 in Dia Min Hole, 1 in Dia Max Hole, 8 Steps, 8 Hole Sizes, 7/16 in Shank
PET20MFG #:10220
Made in the USA.
45 In Stock
$59.99 / EACH
irwin_unibit_10231
Irwin®
Irwin® Unibit® 10231 Step Drill Bit, 1/8 in Dia Min Hole, 1/2 in Dia Max Hole, 13 Steps, HSS, 13 Hole Sizes, 1/4 in Shank
PET1MFG #:10231/1
Made in the USA.
76 In Stock
$25.49 / EACH
irwin_unibit_10232
Irwin®
Irwin® Unibit® 10232 Self-Starting Step Drill Bit, 3/16 in Dia Min Hole, 1/2 in Dia Max Hole, 6 Steps, 6 Hole Sizes, 1/4 in Shank
PET2MFG #:10232/2
Made in the USA.
15 In Stock
$27.49 / EACH
irwin_unibit_10233
Irwin®
Irwin® Unibit® 10233 Self-Starting Step Drill Bit, 1/4 in Dia Min Hole, 3/4 in Dia Max Hole, 9 Steps, 9 Hole Sizes, 3/8 in Shank
PET3MFG #:10233/3
Made in the USA.
36 In Stock
$46.99 / EACH
irwin_unibit_10234sm
Irwin®
Irwin® Unibit® 10234SM Step Drill Bit, 3/16 in Dia Min Hole, 7/8 in Dia Max Hole, 12 Steps, HSS, 12 Hole Sizes, 3/8 in Shank
PET4MFG #:10234/4
Made in the USA.
43 In Stock
$52.99 / EACH
irwin_unibit_10235
Irwin®
Irwin® Unibit® 10235 Step Drill Bit, 1/4 in Dia Min Hole, 1-3/8 in Dia Max Hole, 10 Steps, HSS, 10 Hole Sizes, 7/16 in Shank
PET5MFG #:10235/5
Made in the USA.
42 In Stock
$115.99 / EACH
irwin_unibit_10311
Irwin®
Irwin® Unibit® 10311 Step Drill Bit, 7/8 in Dia Min Hole, 7/8 in Dia Max Hole, HSS, 1 Hole Sizes, 3/8 in Shank
PET11MFG #:10311/11
Made in the USA.
Check other locations for availability. Order exceeds stock available at our Anchorage Distribution Center.
$46.99 / EACH
irwin_unibit_10311zr
Irwin®
Irwin® Unibit® 10311ZR Step Drill Bit, 7/8 in Dia Min Hole, 7/8 in Dia Max Hole, HSS, 1 Hole Sizes, 3/8 in Shank
PET011MFG #:10311ZR
Made in the USA.
9 In Stock
$62.99 / each