Part Number 59003

Step Drill
Description

Step drill bits are used to drill metal up to 1/4 thick. They are designed to enlarge a hole as the bit drills through the metal. Each step on the bit is larger in diameter than the step before. Smaller step drill bits are self-starting and no pilot bit

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Part Number
DEMIL
Shelf Life
UOM
NIIN
Part:
59003
Demil:
No
Shelf Life:
UOM:
NIIN:
011464578
NSN
National Stock Number:
5133-01-146-4578 5133011464578
TXT
Description:
Step Drill
INC
INC
Item Name Code:
77777
MRC:
The shortest straight line between wrenching flats,perpendicular to the height of the shank.AGHB
Shank Width Across Wrench Flats:
0.375 inches
MRC:
The dimensional cutting limits provided by the item.AKZM
Cutting Diameter Range:
+0.250 to 0.750 inches
MRC:
The number of flutes provided.ALAR
Flute Quantity:
1
MRC:
The number of steps provided.ATPC
Step Quantity:
9
MRC:
Indicates the type of drive shank.BPMX
Drive Shank Type:
Male straight hexagon
MRC:
The distance in depth the cutter penertrates per stepDPTS
Depth Penetration Per Step:
0.125 inches
MRC:
Describes the capabilities,intended use,and/or purpose for which the item is provided.FTLD
Functional Description:
Used to drill multiple size holes in thin sections of metal up to 1/8 in. Thick as well as in plastic and wood
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Steel, high speed
MRC:
A recording of the physical,functional,and performance characteristics for an item of supply.TEXT
General Description:
High speed steel; single bit; single flute; drills 9 holes size 1/4 to 3/4 in. Diameter in 1/16 in. Increments; no pilot hole required; fits 3/8 in. And larger electric drills; 1/8 in. Depth penetration per step

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