High Performance End Mills

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High Performance End Mill • Three Flute / Solid Carbide / Ultra Gold Coating • Straight Shank

Series 921 – Corner Radius Rougher End Mill

IMPERIAL

THREE FLUTE • SOLID CARBIDE • ULTRA GOLD COATING • STRAIGHT SHANK | SIZES 1/4″ – 3/4″ INCH

  • 35° helix
  • Suitable for most materials
  • Designed for profiling, slotting and end cutting
▶View All 921 Sizes & Part Numbers4 sizes
Part NumberTool DiameterShank Dia. (In.)Flute Length (In.)OAL (In.)Corner Radius
InchDecimal
921-025001/40.25000.25003/42-1/20.015-0.020
921-037503/80.37500.375012-1/20.015-0.020
921-050001/20.50000.5000130.030-0.035
921-075003/40.75000.75001-1/240.030-0.035

For coolant thru milling chuck holders see the Precision Milling Chucks section below.

Series 922 – Finisher End Mill

IMPERIAL

THREE FLUTE • SOLID CARBIDE • ULTRA GOLD COATING • STRAIGHT SHANK | SIZES 1/4″ – 3/4″ INCH

  • 35° helix
  • Suitable for most materials
  • Designed for slotting, pocketing and finishing
▶View All 922 Sizes & Part Numbers4 sizes
Part NumberTool DiameterShank Dia. (In.)Flute Length (In.)OAL (In.)
InchDecimal
922-025001/40.25000.25003/42-1/2
922-037503/80.37500.375012-1/2
922-050001/20.50000.50001-1/43
922-075003/40.75000.75001-5/84

For coolant thru milling chuck holders see the Precision Milling Chucks section below.

High Performance End Mill • Four Individual Flutes • Solid Carbide • Proprietary Six Coat Finish

Hurricane™ Series 923 – Corner Radius End Mill

IMPERIAL

FOUR INDIVIDUAL FLUTES • SOLID CARBIDE • PROPRIETARY SIX COAT FINISH | SIZES 1/4″ – 3/4″ INCH

  • 35° to 38° helix
  • Synchronized cutting action eliminates vibration
  • Recommended for stainless steels, high temperature alloys, cast iron, low carbon steels as well as tool & die steels.
▶View All Hurricane™ 923 Sizes & Part Numbers5 sizes
Part NumberTool DiameterShank Dia. (In.)Flute Length (In.)OAL (In.)Corner Radius
InchDecimal
923-025001/40.25000.25003/42-1/20.015-0.020
923-037503/80.37500.375012-1/20.015-0.020
923-050001/20.50000.5000130.015-0.020
923-062505/80.62500.62501-1/240.025-0.030
923-075003/40.75000.75001-1/240.030-0.035

For coolant thru milling chuck holders see the Precision Milling Chucks section below.

Hurricane™ Series 924 – Square Corner End Mill

IMPERIAL

FOUR INDIVIDUAL FLUTES • SOLID CARBIDE • PROPRIETARY SIX COAT FINISH | SIZES 1/4″ – 3/4″ INCH

  • 35° to 38° helix
  • Synchronized cutting action eliminates vibration
  • Recommended for stainless steels, high temperature alloys, cast iron, low carbon steels as well as tool & die steels.
▶View All Hurricane™ 924 Sizes & Part Numbers5 sizes
Part NumberTool DiameterShank Dia. (In.)Flute Length (In.)OAL (In.)
InchDecimal
924-025001/40.25000.25003/42-1/2
924-037503/80.37500.375012-1/2
924-050001/20.50000.500013
924-062505/80.62500.62501-1/24
924-075003/40.75000.75001-1/24

For coolant thru milling chuck holders see the Precision Milling Chucks section below.

Precision Milling Chucks

Series PMC – Coolant-Fed Precision Milling Chucks

TOOLHOLDER

CAT • BT • HSK STYLE FLANGES | 3/4″ AND 1-1/4″ MILL CHUCKS

The George Whalley Company precision milling chucks provide maximum performance for solid carbide, carbide tipped and indexable tools. All chucks are sealed with an adjustment screw at the back end of the toolholder eliminating the need for sealed collets. The combination of radial and axial grooves provides the best grip in the marketplace, 0.0002 TIR accuracy. These chucks are great for roughing or fine finishing applications and are available in CAT V holders, BT holders and HSK holders.

  • Radial and axial groove gripping ensure accuracy and have 5-6 times more grip torque than ER and/or TG systems
  • Complete with coolant sealing depth adjustment screw
  • Available in CAT, BT and HSK style flanges
  • Metric and inch size straight reducing collets available
  • Excellent choice for tough roughing as well as fine finishing
  • Symmetrically balanced for speeds up to 10,000 RPM
  • 0.0002 TIR at 4x Diameter
  • Meets AT3 Taper Specification
▶View All PMC Chucks, Reducing Collets & Part Numbers42 sizes

Milling Chucks

ShankABCPart Number
DecimalInchMMDecimalDecimal
CAT400.7503/4853.3502.090C40-PMC-0.750-085
CAT401.2501-1/4903.5402.760C40-PMC-1.250-090
CAT500.7503/41054.1302.090C50-PMC-0.750-105
CAT501.2501-1/4903.5402.910C50-PMC-1.250-090
CAT501.2501-1/41054.1302.910C50-PMC-1.250-105
BT400.7503/4752.9502.090B40-PMC-0.750-075
BT401.2501-1/4853.3502.760B40-PMC-1.250-085
HSK63A0.7503/4953.7402.090H63-PMC-0.750-095
HSK63A1.2501-1/41003.9402.760H63-PMC-1.250-100

Reducing Collets — 3/4″ Mill Chucks

Part NumberSize
PMC 0.750-01251/8″
PMC 0.750-01873/16″
PMC 0.750-02501/4″
PMC 0.750-03125/16″
PMC 0.750-03753/8″
PMC 0.750-04377/16″
PMC 0.750-05001/2″
PMC 0.750-06255/8″
PMC 0.750-06MM6.00MM
PMC 0.750-06MM8.00MM
PMC 0.750-10MM10.00MM
PMC 0.750-12MM12.00MM
PMC 0.750-14MM14.00MM
PMC 0.750-16MM16.00MM

Reducing Collets — 1-1/4″ Mill Chucks

Part NumberSize
PMC 1.250-01251/8″
PMC 1.250-01873/16″
PMC 1.250-02501/4″
PMC 1.250-03125/16″
PMC 1.250-03753/8″
PMC 1.250-04377/16″
PMC 1.250-05001/2″
PMC 1.250-06255/8″
PMC 1.250-07503/4″
PMC 1.250-081213/16″
PMC 1.250-08757/8″
PMC 1.250-093715/16″
PMC 1.250-10001″
PMC 1.250-06MM6.00MM
PMC 1.250-08MM8.00MM
PMC 1.250-10MM10.00MM
PMC 1.250-12MM12.00MM
PMC 1.250-14MM14.00MM
PMC 1.250-16MM16.00MM

* CFT C40-PMC 0.750-085 #904 short projection milling chuck does not meet ANSI specifications.

STOP SCREWS: All chucks are supplied with PMC-CSC – standard length stop screw complete with an extension kit for use with our reducing collets listed above.

Order part number PMC-CSC-XL if a longer length stop screw is required.

Coolant through the spindle machining centers that use HSK holders require part number PMC-HSK-Coolant tube.

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