7Leaders

High Performance Drills 140° Self-Centering Point / 4xDiameter

AITiCrN FT

MG Carbide

4XD

2

Code No: D457FT-4-Dc

Standard Length Dc h7

Bright D457FT-4

Dec. Equiv. Inch

Lc Inch

L Inch

d Inch

3/16 0.1875 #11 0.1910 #10 0.1935 #7 0.2010 13/64 0.2031 #5 0.2055 #3 0.2130 7/32 0.2188 15/64 0.2344 1/4 0.2500 F 0.2570 17/64 0.2656

0.938 0.955 0.968 1.005 1.016 1.028 1.065 1.094 1.172 1.250 1.285 1.328 1.360 1.406 1.484 1.563 1.575 1.594 1.650 1.725 1.766 1.800 1.900 1.869 1.941 2.013 1.994 2.131 2.200 2.269 2.338 2.406 2.475 2.544 2.613 2.750 2.671 2.798 3.053

2-1/2 3/16

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2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2

1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4

Work Material P H M K N S

3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5

5/16 5/16 5/16 5/16 5/16 5/16

I

0.2720

P Steel

9/32 0.2812 19/64 0.2969 5/16 0.3125 21/64 0.3281 Q 0.3320 11/32 0.3438 23/64 0.3594 U 0.3680 3/8 0.3750 25/64 0.3906 13/32 0.4062 27/64 0.4219 7/16 0.4375 29/64 0.4531 31/64 0.4844 1/2 0.5000 33/64 0.5156 17/32 0.5313 35/64 0.5469 9/16 0.5625 37/64 0.5781 19/32 0.5938 5/8 0.6250 21/32 0.6562 11/16 0.6875 3/4 0.7500

H <48HRC

Hardened Steel

3/8 3/8 3/8 3/8 3/8 3/8

M Stainless Steel

K Cast Iron

S Titanium

7/16 7/16 7/16 7/16

S Nickel

S High Temp Alloys

1/2 1/2 1/2

Tolerance: DC All Sizes: h7 Feature of product: Good wear resistance.

9/16 9/16 9/16 9/16

Application for drilling steels as stainless steel, iron, nickle, high temperature alloy, and titanium alloy.

5/8 5/8 5/8 3/4 3/4 3/4

446

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