Page 58 - Michigan Drill

Taper Length Drills

High Speed, Cobalt & TiAlN Coated
Used in production drilling, these drills have the
same flute length as Taper Shank drills.
HOLE MAKING List No. 410C – Super Cobalt, HD, 135° Split Point
List No. 400 – High Speed Steel, 118° Point.

List No. 410CTA – TiAlN Coated Cobalt, HD, 135° Split Point
Letter Sizes

TiAlN
TiAlN
Cobalt
Cobalt
Size Dec. Flute Overall H.S. Price Each Cobalt Size Dec. Flute Overall H.S. Price Each Cobalt
Equiv. Length Length 400 410C 410CTA Equiv. Length Length 400 410C 410CTA
A .2340 3-3/4 6-1/8 10.23 24.75 36.16 N .3020 4 6-3/8 11.99 34.74 50.77
B .2380 3-3/4 6-1/8 10.23 24.75 36.16 O .3160 4-1/8 6-1/2 11.99 34.74 50.77
C .2420 3-3/4 6-1/8 10.23 25.92 37.33 P .3230 4-1/8 6-1/2 11.99 35.91 51.94
D .2460 3-3/4 6-1/8 10.23 25.92 37.33 Q .3320 4-1/8 6-1/2 11.99 35.91 51.94
E .2500 3-3/4 6-1/8 5.71 16.47 27.88 R .3390 4-1/8 6-1/2 13.00 36.90 52.93
F .2570 3-7/8 6-1/4 10.82 31.05 47.08 S .3480 4-1/4 6-3/4 14.78 40.50 56.53
G .2610 3-7/8 6-1/4 11.87 31.05 47.08 T .3580 4-1/4 6-3/4 14.78 43.20 59.23
H .2660 3-7/8 6-1/4 11.87 31.05 47.08 U .3680 4-1/4 6-3/4 15.95 45.45 61.48
I .2720 3-7/8 6-1/4 11.87 32.40 48.43 V .3770 4-3/8 7 15.95 45.45 61.48
J .2770 3-7/8 6-1/4 11.87 32.40 48.43 W .3860 4-3/8 7 16.59 45.45 61.48
K .2810 3-7/8 6-1/4 11.87 32.40 48.43 X .3970 4-3/8 7 16.59 45.45 61.48
L .2900 4 6-3/8 11.87 34.02 50.05 Y .4040 4-3/8 7 17.75 49.50 71.05
M .2950 4 6-3/8 11.99 34.02 50.05 Z .4130 4-5/8 7-1/4 19.17 49.50 71.05

Metric Taper Length Drills

High Speed Steel
List No. 401 – General Purpose, 118° Point
Taper length drills have longer flute and overall length
than Jobber length drills. Tanged sizes available. Please Inquire
Dec.
Flute
Flute
Dec.
Size Equiv. Length Overall Pkg. Price Size Equiv. Length Overall Pkg. Price
Length
Qty.
Each
Each
Qty.
Length
1.00 .0394 1-1/8 2-1/4 12 4.86 2.70 .1063 2-1/2 4-5/8 12 10.80
1.05 .0413 1-1/8 2-1/4 12 6.75 2.80 .1102 2-3/4 5-1/8 12 10.80
1.10 .0433 1-1/8 2-1/4 12 6.75 2.90 .1142 2-3/4 5-1/8 12 10.80
1.15 .0453 1-1/8 2-1/4 12 6.75 3.00 .1181 2-3/4 5-1/8 12 9.09
1.20 .0472 1-3/4 3 12 5.58 3.10 .1220 2-3/4 5-1/8 12 10.08
1.25 .0492 1-3/4 3 12 5.58 3.20 .1260 3 5-3/8 12 11.21
1.30 .0512 1-3/4 3 12 5.58 3.30 .1299 3 5-3/8 12 11.21
1.35 .0531 1-3/4 3 12 6.75 3.40 .1339 3 5-3/8 12 12.06
1.40 .0551 1-3/4 3 12 5.58 3.50 .1378 3 5-3/8 12 11.21
1.45 .0571 1-3/4 3 12 7.65 3.60 .1417 3 5-3/8 12 12.51
1.50 .0591 1-3/4 3 12 5.58 3.70 .1457 3 5-3/8 12 12.51
1.55 .0610 1-3/4 3 12 7.65 3.80 .1496 3 5-3/8 12 12.51
1.60 .0630 2 3-3/4 12 6.75 3.90 .1535 3 5-3/8 12 13.05
1.65 .0650 2 3-3/4 12 7.65 4.00 .1575 3-3/8 5-3/4 12 11.21
1.70 .0669 2 3-3/4 12 6.75 4.10 .1614 3-3/8 5-3/4 12 13.05
1.75 .0689 2 3-3/4 12 7.65 4.20 .1654 3-3/8 5-3/4 12 11.21
1.80 .0709 2 3-3/4 12 6.75 4.30 .1693 3-3/8 5-3/4 12 13.05
1.85 .0728 2 3-3/4 12 7.65 4.40 .1732 3-3/8 5-3/4 12 13.05
1.90 .0748 2 3-3/4 12 6.75 4.50 .1772 3-3/8 5-3/4 12 11.21
1.95 .0768 2 3-3/4 12 7.65 4.60 .1811 3-3/8 5-3/4 12 12.60
2.00 .0787 2-1/4 4-1/4 12 7.11 4.70 .1850 3-3/8 5-3/4 12 16.20
2.05 .0807 2-1/4 4-1/4 12 9.00 4.80 .1890 3-5/8 6 12 14.04
2.10 .0827 2-1/4 4-1/4 12 7.65 4.90 .1929 3-5/8 6 12 14.04
2.15 .0846 2-1/4 4-1/4 12 8.55 5.00 .1969 3-5/8 6 12 13.05
2.20 .0866 2-1/4 4-1/4 12 7.65 5.10 .2008 3-5/8 6 12 16.20
2.25 .0886 2-1/4 4-1/4 12 9.00 5.20 .2047 3-5/8 6 12 16.20
2.30 .0906 2-1/4 4-1/4 12 7.65 5.25 .2067 3-5/8 6 12 16.20
2.35 .0925 2-1/4 4-1/4 12 10.62 5.30 .2087 3-5/8 6 12 16.20
2.40 .0945 2-1/2 4-5/8 12 9.81 5.40 .2126 3-5/8 6 12 16.20
2.45 .0965 2-1/2 4-5/8 12 10.62 5.50 .2165 3-5/8 6 12 13.05
2.50 .0984 2-1/2 4-5/8 12 9.81 5.60 .2205 3-3/4 6-1/8 12 14.81
2.60 .1024 2-1/2 4-5/8 12 10.80 5.70 .2244 3-3/4 6-1/8 12 14.81
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