LBS Catalog
Multi-Flute Ball Nose End Mills
High Speed Steel/Cobalt Fractional/Single End/Bright
Packaging: All sizes are individually packaged.
Series 6440A Multi-Flute Finishing End Mills
Extra-Long Length/Center Cutting/Single End
Cutting Tools Ball-Nose end mills have rounded end cutting edges. This style of end mill is available as a center cutting tool only. It is used where rounded details must be machined in a part (for example, a slot with a rouded bottom). It is also used where sharp ma- chined corners must be avoided. Ball nose end mills are also widely used for delicate cuts on contoured surfaces of molds and dies.
Shank Dia.
Length of Cut
Overall Length
6440A Item No.
Size
No. of Flutes
1/4”
3/8”
1-3/4”
3-9/16”
4
74530
5/16”
3/8”
2”
3-3/4”
4
74531
3/8”
3/8”
2-1/2”
4-1/4”
4
74532
1/2”
1/2”
3”
5”
4
74533
6440A
1/2”
1/2”
4”
6”
4
74534
5/8”
5/8”
4”
6-1/8”
4
74535
3/4”
3/4”
4”
6-1/4”
4
74536
1”
1”
6”
8-1/2”
4
74537
2”
2”
8”
11-3/4”
6
74538
Series 6650A Multi-Flute Finishing End Mills (Cobalt) Extra-Long LengthCenter Cutting/Double End The greater red hardness of M-42 Cobalt end mills enables these tools to run about 10% faster than conventional HSS end mills. This translates to shorter machining times and permits fuller utilization of available machine horsepower. While Cobalt end mills are initially more expensive than HSS, they retain their sharpness for longer, providing more cuts between grinds and less ma- chine downtime, resulting in lower end mill tooling costs.
Shank Dia.
Length of Cut
Overall Length
6650A Item No.
Size
No. of Flutes
1/8”
3/8”
3/8”
2-5/16”
4
18493
Assortments A-12 Fasteners F-72
3/16”
3/8”
1/2”
2-3/8”
4
18494
1/4”
3/8”
5/8”
2-7/16”
4
18495
Cutting Tools C-325
5/16”
3/8”
3/4”
2-1/2”
4
18496
3/8”
3/8”
3/4”
2-1/2”
4
18497
6650A
Pipe Fittings P-541 Electrical E-704 Hydraulics H-745
1/2”
1/2”
1-1/4”
3-1/4”
4
18498
5/8”
5/8”
1-5/8”
3-3/4”
4
18499
3/4”
3/4”
1-5/8”
3-7/8”
4
18500
1”
1”
2”
4-1/2”
4
18501
1-1/4” 1-1/4”
2”
4-1/2”
6
18502
Abrasives AB-782 MRO M-833
Tel: (225) 272-6200 Fax: (225) 272-7001
sales@lbsbr.com www.lightningboltandsupply.com
C-540
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