Page 15 - Michigan Drill

Aircraft Jobber Length Drills

High Speed Steel – Oxide Finish

List No. 300SA – Type “A”, 118° Split Point,
Standard Web Construction

List No. 300SB – Type “B”, 135° Split Point
Heavy Duty Web Construction A.I. . A HOLE MAKING
N A S 0 7
Letter Sizes
Price Each Price Each
Dec. Flute Overall Pkg. Type A Type B Dec. Flute Overall Pkg. Type A Type B
Size Size
Equiv. Length Length Qty. 300SA 300SB Equiv. Length Length Qty. 300SA 300SB
A .2340 2-5/8 3-7/8 12 2.90 2.90 N .3020 3-1/16 4-3/8 6 4.22 4.22
B .2380 2-3/4 4 12 2.90 2.90 O .3160 3-3/16 4-1/2 6 4.22 4.22
C .2420 2-3/4 4 12 2.90 2.90 P .3230 3-5/16 4-5/8 6 4.88 4.88
D .2460 2-3/4 4 12 2.90 2.90 Q .3320 3-7/16 4-3/4 6 5.02 5.02
E .2500 2-3/4 4 12 2.44 2.44 R .3390 3-7/16 4-3/4 6 5.37 5.37
F .2570 2-7/8 4-1/8 12 2.97 2.97 S .3480 3-1/2 4-7/8 6 5.91 5.91
G .2610 2-7/8 4-1/8 12 3.44 3.44 T .3580 3-1/2 4-7/8 6 6.27 6.27
H .2660 2-7/8 4-1/8 12 3.63 3.63 U .3680 3-5/8 5 6 6.27 6.27
I .2720 2-7/8 4-1/8 6 3.63 3.63 V .3770 3-5/8 5 6 6.44 6.44
J .2770 2-7/8 4-1/8 6 3.83 3.83 W .3860 3-3/4 5-1/8 6 6.78 6.78
K .2810 2-15/16 4-1/4 6 4.09 4.09 X .3970 3-3/4 5-1/8 6 8.03 8.03
L .2900 2-15/16 4-1/4 6 4.22 4.22 Y .4040 3-7/8 5-1/4 6 9.82 9.82
M .2950 3-1/16 4-3/8 6 4.22 4.22 Z .4130 3-7/8 5-1/4 6 9.82 9.82

Sets

Size Point Angle Pieces Set No. Price
1/16 – 1/4 by 64 ths Type “B” 135° 13 307GH 27.78
1/16 – 1/2 by 32 nds Type “B” 135° 15 307RH 77.04
1/16 – 3/8 by 64 ths Type “B” 135° 21 307SH 67.03
1/16 – 1/2 by 64 ths Type “B” 135° 29 307FH 131.24
1/16 – 1/2 by 64 ths Type “A” 118° 29 307FHA 131.24
1 – 60 Type “B” 135° 60 307WH 106.39
A – Z Letter Sizes Type “B” 135° 26 307LD 141.12
1/16 – 1/2 by 64ths, A – Z Type “B” 135° 115 307XH 385.50
Letter, & 1 – 60 Wire
All sets are supplied in a Huot metal index

TiCN Coated

Aircraft Jobber Length Drills

High Speed Steel
List No. 300SBTN – Titanium Carbonitride Coated
Type “B”, 135° Split Point, Heavy Duty Web Construction
Flute Overall Flute Overall
Size Price Each Size Price Each
Length Length Length Length
1/16 7/8 1-7/8 2.94 19/64 3-1/16 4-3/8 10.22
5/64 1 2 2.94 5/16 3-3/16 4-1/2 10.51
3/32 1-1/4 2-1/4 2.94 21/64 3-5/16 4-5/8 11.38
7/64 1-1/2 2-5/8 3.14 11/32 3-7/16 4-3/4 11.98
1/8 1-5/8 2-3/4 3.19 23/64 3-1/2 4-7/8 13.06
9/64 1-3/4 2-7/8 3.65 3/8 3-5/8 5 12.92
5/32 2 3-1/8 4.09 25/64 3-3/4 5-1/8 17.00
11/64 2-1/8 3-1/4 4.24 13/32 3-7/8 5-1/4 16.73
3/16 2-5/16 3-1/2 4.50 27/64 3-15/16 5-3/8 18.46
13/64 2-7/16 3-5/8 5.48 7/16 4-1/16 5-1/2 18.55
7/32 2-1/2 3-3/4 5.86 29/64 4-3/16 5-5/8 20.24
15/64 2-5/8 3-7/8 6.25 15/32 4-5/16 5-3/4 20.64
1/4 2-3/4 4 6.37 31/64 4-3/8 5-7/8 21.66
17/64 2-7/8 4-1/8 9.24 1/2 4-1/2 6 21.39
9/32 2-15/16 4-1/4 9.17 35/64 4-13/16 6-5/8 43.00
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