We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
3/8 inch 4-flute carbide end mill with AlTiBN coating

SPEED TIGER

SPEED TIGER ISE3-8-4T 3/8" 4-Flute Carbide End Mill pneumatic accessory

SKU CH-BH26-ZFWJP

A 3/8 inch four-flute carbide end mill with AlTiBN coating for milling alloy steels up to HRC45 and hardened steels to HRC45

  • Fit and compatibilityISE-4T
  • Product typeEnd Mills
  • Size or dimensions3/8 In
  • Main materialCarbide
  • Sold as1

Model 3/8 In

Version 1 Pack

  • Micro-grain carbide resists wear in hardened steels up to HRC45
  • AlTiBN coating handles high cutting speeds and temperatures better than TiAlN
  • Four-flute square-end design suits general metalworking and stainless applications
  • Ground in an ISO-9001 factory for consistent flute geometry
  • 3/8-inch diameter with 0.375-inch shank fits standard tool holders

General Application Cutter

The SPEED TIGER ISE3-8-4T is a 3/8 inch solid carbide square end mill with four flutes. It is designed for milling carbon steels around HB225, alloy steels between HB225 and 325, pre-hardened steels up to HRC45, hardened steels from HRC40 to 45 and cast iron. The tool suits both DIYers and professionals handling general metalworking tasks.

AlTiBN Coating Heat Resistance

The micrograin carbide substrate provides high toughness and wear resistance during cutting operations. An AlTiBN coating lubricates the flutes for stability at high temperature and offers superior wear resistance at high cutting speeds. This coating delivers better heat resistance than TiAlN, TiN or TiCN alternatives. Flutes are ground in an ISO-9001 certified factory.

3/8 Inch Shank Compatibility

The cutter features a 0.375 inch shank diameter compatible with ISE-4T tooling systems. It requires a holder or collet that accepts this specific shank size. The square end geometry produces flat-bottomed slots and pockets in the materials listed. Buyers needing different diameters, flute counts or corner-radius profiles should select another model from the same series.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $15.99
Cheaper than about 73% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameSpeed Tiger
Model nameISE3-8-4T
Product typeEnd Mills
Size & build
Size or dimensions3/8 In
Main materialCarbide
Compatibility
Fit and compatibilityISE-4T

Other versions of this model

5 more in the same range

Questions about this item

How do I install the 3/8" shank into my collet and what step is often missed?

Insert the .375 inch shank fully into a matching ER collet, tighten the nut to the holder's rated torque, and verify zero run-out before starting the spindle.

When will the AlTiBN coating need replacement and how can I tell?

The AlTiBN coating wears gradually; replace the end mill once flank wear reaches the ISO 9001 factory limit or when cutting forces rise sharply in HRC 40-45 steel.

What thermal limit appears first during a long slot in pre-hardened steel?

Sustained cutting above HRC 45 generates heat that degrades the AlTiBN lubrication layer, causing rapid flank wear before the carbide substrate fails.

More in Bits, Hole Saws & Accessory Kits

Similar items