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1/4" Dia, 4 Flute, Ball Nose End Mill - 91281

SERIES: 01B

General Application End Mill

1/4" Dia, 3/4" LOC, 1/4" Shank Dia, 4 Flute, 30 Degree Helix, Di-NAMITE (Diamond) Coated, Series 01B, Ball Nose End Mill - 91281

SKU / EDP	91281
Category	Solid Round Tools > Milling > General Application End Mills
Min Order Qty	1
Series	01B
Series Description	General Application End Mill
High Performance	No
End Configuration	Ball Nose
Tool Length	Long
Unit (inch/mm)	inch
Number of Flutes	4
Primary Workpiece Material	(P) Steel\|(M) Stainless Steel\|(K) Cast Iron\|(N) Non-Ferrous Materials\|(S) High Temp Alloy
Secondary Workpiece Material	(H) Hardened Materials
Cutting Diameter (DC) (Decimal Inch)	0.2500
Cutting Diameter (DC) (Fractional Inch)	1/4
Cutting Diameter (DC) (mm)	6.35
Shank Diameter (DCON) (Decimal Inch)	0.2500
Shank Diameter (DCON) (Fractional Inch)	1/4
Shank Diameter (DCON) (mm)	6.35
Length of Cut (APMX) (Decimal Inch)	0.7500
Length of Cut (APMX) (Fractional Inch)	3/4
Length of Cut (APMX) (mm)	19.05
Overall Length (LF) (Decimal Inch)	2.5000

Overall Length (LF) (Fractional Inch)	2-1/2
Overall Length (LF) (mm)	63.50
Shank Length (LS) (Decimal Inch)	1.7500
Shank Length (LS) (Fractional Inch)	1-3/4
Shank Length (LS) (mm)	44.45
Cutting Diameter (DC) Tolerance (Decimal Inch)	+0.0000/-0.0020
Cutting Diameter (DC) Tolerance (mm)	+0,000/-0,050
Shank Diameter (DCON) Tolerance (ISO)	h6
Corner Radius (RE) Tolerance (Decimal Inch)	+0.0000/-0.0010
Corner Radius (RE) Tolerance (mm)	+0,000/-0,025
Shank Type	Straight
Weldon Flat	No
Coolant Option	External Coolant
Coating Description	Diamond (Di-NAMITE)
Additional Geometry	Right Hand Cut Direction (RHC)
Rake Angle	Positive
Helix Angle	Right Spiral
Helix Angle (Degree)	30
Variable Helix	No
Center Cutting	Yes
Chip Breaker	No