Page 117 - Michigan Drill

Track Bits

High Speed Steel & Nitride

The flat beaded track bit is the leading tool for rail drilling in America,
offered in single end or in cost savings double end style. Track Bit Tip Protector
Both are standard, off-the-shelf items for immediate delivery. For sizes over 1"
Nitride Coating creates a surface super-hardness which results in Tool No. 330 Price: 27.20
increased tool life when drilling alloyed hard rail. Tool life is reported
to be 300% or more depending on rail material and site cutting conditions. HOLE MAKING
Single End
List No. 332 – High Speed Steel
List No. 332N – Nitride Coated
Price Each Price Each
Overall High Speed Nitride Coated Overall High Speed Nitride Coated
Diameter Diameter
Length 332 332N Length 332 332N
5/8 6-1/4 38.38 46.26 1-1/4 6-1/4 53.58 62.82
11/16 6-1/4 38.38 46.26 1-5/16 6-1/4 56.13 65.63
13/16 6-1/4 39.33 46.26 1-3/8 6-1/4 56.83 66.30
1 6-1/4 46.14 52.94 1-7/16 6-1/4 65.20 73.94
1-1/16 6-1/4 47.30 55.36 1-1/2 6-1/4 63.81 74.34
1-1/8 6-1/4 48.43 56.56 1-9/16 6-1/4 71.84 83.18
1-3/16 6-1/4 52.69 59.49
Double End
List No. 333 – High Speed Steel
List No. 333N – Nitride Coated
Price Each Price Each
Overall High Speed Nitride Coated Overall High Speed Nitride Coated
Diameter Diameter
Length 333 333N Length 333 333N
13/16 6-1/4 51.07 57.26 1-1/4 6-1/4 65.42 75.39
15/16 6-1/4 53.94 61.18 1-5/16 6-1/4 68.54 78.72
1 6-1/4 56.29 67.74 1-3/8 6-1/4 71.65 82.11
1-1/16 6-1/4 58.45 69.02 1-7/16 6-1/4 77.34 88.03
1-1/8 6-1/4 58.94 70.22 1-1/2 6-1/4 80.77 92.42
1-3/16 6-1/4 64.45 73.87
Rail Drills
List No. 334 – Cobalt Heavy Duty Slow
Spiral Oxide Finish 130° Point
Overall Price Overall Price
Diameter Flute Diameter Flute
Length Each Length Each
1/16 9/16 1-7/8 2.90 10 2 3-1/2 6.70
50 3/4 2 2.90 13/64 1-1/2 3-5/8 6.90
40 1-7/8 6 6.50 1/4 1-1/4 4 6.22
30 3/4 2-3/4 3.70 1/4 2 6 9.40
27 1-1/4 3 3.90 19/64 2 4-3/8 10.70
26 1-1/4 3 3.90 27/64 2-1/2 5-1/2 18.92
3/16 1-5/8 3-1/2 4.24 29/64 2-1/2 5-3/4 24.00
12 1-1/2 3-1/2 6.40 15/32 2-1/8 5-3/4 25.50

Dual Auger (Stud) Bits 1/4" Hex Shank

Fast Screw Point
Premium Tool Steel Self-Feeding Point
List No. 618 – 5" Flute Length, 7-7/8" Overall Length
Dual Auger Stud Bits are designed for use in a hand bit brace or a 3/8" or
larger electric power drill and are used for fast and accurate boring in soft
or hard woods. Single flute design with single cutter, an outlining spur,
and a self-feeding fast pitch screw point.
Size Price Each Size Price Each Size Price Each SET Sizes
1/4, 3/8, 1/2, 5/8, 3/4, 1
1/4 8.89 5/8 11.79 1 19.61
5/16 8.89 11/16 13.76 1-1/8 21.97 Description
3/8 8.89 3/4 13.76 1-1/4 28.71 6pc Set
7/16 9.45 13/16 15.82 1-3/8 32.97
1/2 9.45 7/8 15.82 1-1/2 35.85 Set No. 618S
9/16 11.79 15/16 19.61 Price: 59.00
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