High Speed Steel
Square End
and Ball End

2 Flute

Fractional Sizes

High Speed Steel
Square End
and Ball End

2 Flute

Fractional Sizes

These Besly Miniature Regular Length End Mills have double ends and come with 3/16" shanks. Choose Catl No. 527 for Square End and Catl No. 528 for Ball End.

High Speed Steel
Square End

2 Flute

Fractional Sizes

These Besly Miniature Long Length End Mills have double ends and come with 3/16" shanks.

High Speed Steel
Square End

4 Flute

Fractional Sizes

These Besly Miniature Regular Length End mills have four flutes, double ends, square ends, and come with 3/16" shanks.

High Speed Steel
Square End

4 Flute

Fractional Sizes

These Besly Miniature Long Length End Mills have four flutes, double ends, square ends, and come with 3/16" shanks.

High Speed Steel

American Standard Cutter Sizes

Besly Woodruff Keyseat Cutters are right handed and have a 1/2" straight shank with a set screw flat on the shank. The 1" diameter and over have two holding flats.

Premium Cobalt Steel
and High Speed Steel
Square End

2 Flute

Fractional Sizes

These single end, square end end mills are designed for production milling of slots, pockets, keyways and other general purpose work. Their body construction provides for rapid stock removal and rigidity for accurate drilling. Sizes up to 1-1/4" are made from Premium Cobalt Steel and sizes over 1-1/4" are made from High Speed Steel.

Premium Cobalt Steel
and High Speed Steel
Square End

2 Flute

Fractional Sizes

These end mills are single end, square end with a 30° helix. Weldon Flat 7/8 diameter and over have 2 flats. These Keyway Cutting End Mills have flute diameters ground to a tolerance of plus .000 minus .0015.
Sizes up to 1-1/4" are made from Premium Cobalt Steel and sizes over 1-1/4" are made from High Speed Steel.

Premium Cobalt Steel
and High Speed Steel
Square End

2 Flute

Fractional Sizes

These single end, square end Besly End Mills are especially designed with fast spiral flutes for maximum chip removal, longer tool life, better finishes and freer cutting action in aluminum and aluminum alloys. Sizes up to 1-1/4" are made from Premium Cobalt Steel and sizes over 1-1/4" are made from High Speed Steel.

Premium Cobalt Steel
and High Speed Steel
Square End

2 Flute

Fractional Sizes

These single end, square end Besly End Mills are especially designed with fast spiral flutes for maximum chip removal, longer tool life, better finishes and freer cutting action in aluminum and aluminum alloys.


Sizes up to 1-1/4" are made from Premium Cobalt Steel and sizes over 1-1/4" are made from High Speed Steel.

Premium Cobalt Steel
and High Speed Steel
Square End

2 Flute

Fractional Sizes

These single end, square end Besly End Mills are especially designed with fast spiral flutes for maximum chip removal, longer tool life, better finishes and freer cutting action in aluminum and aluminum alloys. Sizes up to 1-1/4" are made from Premium Cobalt Steel and sizes over 1-1/4" are made from High Speed Steel.

Premium Cobalt Steel
and High Speed Steel
Square End

2 Flute

Fractional Sizes

These single end, square end Besly End Mills are designed for production milling of slots, pockets, keyways and other general purpose work. Their body construction provides for rapid stock removal and rigidity for accurate milling. Sizes up to 1-1/4" are made from Premium Cobalt Steel and sizes over 1-1/4" are made from High Speed Steel.

Premium Cobalt Steel
and High Speed Steel
Ball Nose

2 Flute

Fractional Sizes

These single end, ball nose Besly End Mills may be used for milling radius bottom slots, fillets, rounding the bottoms of holes and all-round use in die work.



Sizes up to 1-1/4" are made from Premium Cobalt Steel and sizes over 1-1/4" are made from High Speed Steel.

Premium Cobalt Steel
and High Speed Steel
Ball Nose

2 Flute

Fractional Sizes

These single end, ball nose Besly End Mills are designed for use in tracer controlled and die sinking machines, and also for fillet milling and other general purpose milling operations. Sizes up to 1-1/4" are made from Premium Cobalt Steel and sizes over 1-1/4" are made from High Speed Steel.

Premium Cobalt Steel
and High Speed Steel
Ball Nose

2 Flute

Fractional Sizes

This double end, ball nose Besly End Mill is used for production milling of radium bottom slots, fillets, and some die sinking operations. Sizes up to 1-1/4" are made from Premium Cobalt Steel and sizes over 1-1/4" are made from High Speed Steel.

Premium Cobalt Steel
and High Speed Steel
Square End

2 Flute

Fractional Sizes

These double end, square end Besly End Mills are designed for production milling of slots, pockets, keyways and other general purpose work. End teeth are ground to center for plunge cutting the initial hole. Furnished with right hand cut, right hand helix. Sizes up to 1-1/4" are made from Premium Cobalt Steel and sizes over 1-1/4" are made from High Speed Steel.

Premium Cobalt Steel
and High Speed Steel

Center Cutting and
Square End

4 Flute

Fractional Sizes

These double end, center cutting (through 5/8" - balance square end) Besly End Mills are designed for producing smooth finishes after roughing cuts have been made at heavier feeds. The double end feature offers added economies and provides for both ends being resharpened in a single set-up. Furnished with right hand cut, right hand helix. Sizes up to 1-1/4" are made from Premium Cobalt Steel and sizes over 1-1/4" are made from High Speed Steel.

Premium Cobalt Steel
and High Speed Steel

Center Cutting and
Square End

4 and 6 Flute

Fractional Sizes

These single end, center cutting (through 5/8" - balance square end) Besly End Mills are designed for producing smooth finishes after roughing cuts have been made at heavier feeds. Furnished with a right hand cut, right hand helix.


Sizes up to 1-1/4" are made from Premium Cobalt Steel and sizes over 1-1/4" are made from High Speed Steel.

Premium Cobalt Steel
and High Speed Steel

Center Cutting Thru 5/8"
Balance Square End

4, 6  and 8 Flute

Fractional Sizes

These single end, center cutting (through 5/8" - balance square end) Besly End Mills are regularly furnished with right hand cut and right hand spiral flutes and are flatted on the shank. End mills with 7/8" shank diameter and larger have an additional flat on the end of the shank to fit pin drive holder. Sizes up to 1-1/4" are made from Premium Cobalt Steel and sizes over 1-1/4" are made from High Speed Steel.

Premium Cobalt Steel
and High Speed Steel
Ball Nose

4 Flute

Fractional Sizes

These single end, ball nose Besly End Mills may be used in tracer milling, die sinking, fillet milling and other general purpose milling operations where a ball nose end mill would usually be used.



Sizes up to 1-1/4" are made from Premium Cobalt Steel and sizes over 1-1/4" are made from High Speed Steel.

Premium Cobalt Steel
and High Speed Steel
Ball Nose

4 Flute

Fractional Sizes

These single end, ball nose, center cutting Besly End Mills may be used in tracer milling, die sinking, fillet milling and other general purpose milling operations where a ball nose end mill would usually be used. Sizes up to 1-1/4" are made from Premium Cobalt Steel and sizes over 1-1/4" are made from High Speed Steel.

Premium Cobalt Steel
and High Speed Steel

Center Cutting
and Square End

4 and 6 Flute

Fractional Sizes

These single end, center cutting (through 5/8" - larger sizes have square end) Besly End Mills are regularly furnished with right hand cut and right hand spiral flutes and are flatted on the shank. End mills with 7/8" shank diameter and larger have an additional flat on the end of the shank to fit a pin drive holder. Sizes up to 1-1/4" are made from Premium Cobalt Steel and sizes over 1-1/4" are made from High Speed Steel.

Carbide Tipped
High Speed Steel
Straight Flute

4 and 6 Flute

Fractional Sizes

These straight shank, straight flute Besly End Mills are for milling soft cast steel, cast and malleable iron. Use moderate speeds and feeds - feeds less than .002" per tooth per revolution may result in fast dulling of cutting edges.

Carbide Tipped
High Speed Steel
Straight Flute

2 Flute

Fractional Sizes

These straight shank, straight flute Besly End Mills are recommended for the same applications as Catl No. 866. When machine horsepower is low, the fewer flutes of this style permit proper speed-feed rates to be maintained. Also for milling soft materials using heavy feeds.

Carbide Tipped
High Speed Steel
Center Cutting

3 Flute

Fractional Sizes

These straight shank, center cutting Besly End Mills are for plunge-traverse milling. The center cutting feature is possible because one of the three flutes is inserted past the center line of the tool.

Carbide Tipped
High Speed Steel
Left Spiral Flute

2, 4 and 6 Flute

Fractional Sizes

These straight shank, left spiral flute Besly End Mills are for milling most types of steel, including hardened steel and other tougher, harder alloys. The left spiral flutes absorb impact shocks on entering the work. Average feeds per tool .003 to .005" per tooth per revolution. Speeds should be reduced in proportion to the hardness of materials being machined.

Carbide Tipped
High Speed Steel
Right Spiral Flute

2, 4 and 6 Flute

Fractional Sizes

These straight shank, right spiral flute Besly End Mills are recommended for use in milling all types of metals and non-metals except steel or cast iron, especially the free cutting, very ductile aluminums and zincs. Due to the greater capacity of these styles to remove chips, we suggest faster speeds and heavier feeds on these generally softer materials.