Straight Flute Drills 140° Point and Straight Flute
Uncoated Bright
MG Carbide
0°
2
Code No: D451-DC
Work Material P H M K N S
Lc
L
140˚
Standard Length Dc h7
H <56HRC
Hardened Steel
Bright D451
Dec. Equiv. Inch
Lc Inch
L Inch
M Stainless Steel
3/64 1/16 5/64 3/32 7/64 9/64 5/32 1/8
0.0469 0.0625
1/2 5/8
1-1/2 1-5/8
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0.0781 11/16 1-11/16
S High Temp Alloys
0.0938
3/4
1-3/4
0.1094 13/16 1-13/16
Tolerance: DC All Sizes: h7 Feature of product:
0.1250
7/8
1-7/8
0.1406 15/16
2
0.1562
1
2-1/16
11/64 0.1719 1-1/16 2-1/8
140° point and straight flute give this drill strength and rigidity. Recommended for drilling in hard and high strength materials such as Heat treated Steel Alloys, <HRC56, Nickel-chrome Steel, Stainless Steels, Bearing Steels and High Temp Alloys.
3/16
0.1875 1-1/8 2-3/16
13/64 0.2031 1-3/16 2-1/4
7/32
0.2188 1-1/4
2-3/8
15/64 0.2344 1-5/16 2-7/16
1/4
0.2500 1-3/8
2-1/2
17/64 0.2656 1-7/16 2-5/8
9/32
0.2812 1-1/2 2-11/16
19/64 0.2969 1-9/16 2-3/4
5/16
0.3125 1-5/8 2-13/16
21/64 0.3281 1-11/16 11/32 0.3438 1-11/16
3 3
23/64 0.3594 1-3/4 3-1/16
3/8
0.3750 1-13/16 3-1/8
25/64 0.3906 1-7/8
3-1/4
13/32 0.4062 1-15/16 3-5/16
27/64 0.4219
2
3-3/8
7/16
0.4375 2-1/16 3-7/16
29/64 0.4531 2-1/8 3-9/16
15/32 0.4688 2-1/8
3-5/8
31/64 0.4844 2-3/16 3-11/16
1/2 #60 #59 #58 #57 #56 #55 #54 #53 #52 #51 #50 #49 #48 #47 #46 #45 #44 #43
0.5000 2-1/4
3-3/4 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2
0.0400 0.0410 0.0420 0.0430 0.0465 0.0520 0.0550 0.0595
1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2
0.0635 11/16 1-11/16 0.0670 11/16 1-11/16 0.0700 11/16 1-11/16 0.0730 11/16 1-11/16 0.0760 11/16 1-11/16
0.0785 0.0810 0.0820 0.0860 0.0890
3/4 3/4 3/4 3/4 3/4
1-3/4 1-3/4 1-3/4 1-3/4 1-3/4
437
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