Reference Guide

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Metal Drilling
METAL DRILLING
156
Step Drill Bits / Sets
UNIBIT Sets
10502CB
Description Type Contents Item #
4-Piece Set
High Speed Steel Set
#1, 2, 4 & 21
10225
4-Piece Set
High Speed Steel Set w/#1 TiN
#1, 2 & 3 plus #1T
10228
3-Piece Set
High Speed Steel Set
#1, 2 & 3
10502ZR
3-Piece Set
Titanium Nitride Coated Set
#1T, 2T & 3T
15502
3-Piece Set
Cobalt Set
#1C, 2C & 3C
10502CB
9-Piece Set
Unibit/TiN Turbomax Set
#1, #4 & 7-Piece TiN (1/16", 3/32",
1/8", 3/16",7/32", 1/4", 3/8")
1/8", 3/16",7/32", 1/4", 3/8")
3018008
Description
# of Hole
Sizes
Hex Shank
Size
Carded
Item #
#1MT 4 mm - 12 mm (1 mm steps)
9
1/4"
16101
#2MT 4 mm - 12 mm (2 mm steps)
5
1/4"
16102
#3MT 6 mm - 18 mm (2 mm steps)
7
3/8"
16103
#4MT 4 mm - 22 mm (2 mm steps)
10
3/8"
16104
#5MT 5 mm - 35 mm (2 - 3 mm steps)
13
7/16"
16105
UNIBIT
®
HSS Metric Titanium Nitride
(TiN) Coated
• Titanium Nitride coating resists heat and friction, extending the
• Titanium Nitride coating resists heat and friction, extending the
cutting edge life up to six times longer than other high speed
steel step drill bits.
• SpeedPoint
®
tip for fast starts.*
16103
Description
# of Hole
Sizes
Hex Shank
Size
Carded
Item #
#1 1/8" - 1/2" (1/32" steps)
13
1/4"
10231
#2 3/16" - 1/2" (1/16" steps)
6
1/4"
10232
#3 1/4" - 3/4" (1/16" steps)
9
3/8"
10233
#4 3/16" - 7/8" (1/16" steps)
12
3/8"
10234
#5 1/4" - 1-3/8" (1/8" steps)
10
7/16"
10235
#9 7/8" and 1-1/8" (1/2" and 3/4" Knock-Out)
2
7/16"
10239
#10 1/2" (single hole)
1
1/4"
10310
#11 7/8" (single hole)
1
3/8"
10311ZR
#12 3/8" (single hole)
1
1/4"
10312ZR
#13 1-1/8" (single hole)
1
7/16"
10313ZR
#14 1-7/32" (single hole)
1
7/16"
10314
#20 9/16" - 1" (hole enlarging)
8
7/16"
10220
#21 13/16" - 1-3/8"(hole enlarging)
10
7/16"
10221
UNIBIT HSS Fractional
Description
# of Hole
Sizes
Hex Shank
Size
Carded
Item #
#1M 4 mm - 12 mm (1 mm steps)
9
1/4"
11101ZR
#2M 4 mm - 12 mm (2 mm steps)
5
1/4"
11102
#3M 6 mm - 18 mm (2 mm steps)
7
3/8"
11103
#4M 4 mm - 22 mm (2 mm steps)
10
3/8"
11104
#5M 5 mm - 35 mm (2-3 mm steps)
13
7/16"
11105ZR
#20M 14 mm - 24 mm (hole enlarging)
6
7/16"
11580
#21M 20 mm - 34 mm (hole enlarging)
8
7/16"
11581
PG29M 5 mm - 28.3 mm
10
7/16"
11194
29 mm 5 mm - 29 mm
10
7/16"
11195
UNIBIT HSS Metric
• SpeedPoint
®
tip for fast starts.*
• Geometry of single-flute cutting edge drills true,
round holes and provides maximum step control.
.
Sets:
10225, 10228, 10502
*included on all self-starting sizes except for #1
10234
• SpeedPoint
®
tip for fast starts.*
• Geometry of single-flute cutting edge drills true,
round holes and provides maximum step control.
11101ZR
— SpeedPoint™ Tip