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Carbide tapered ball-nose end mill with nACo coating, 1/4 inch shank, 3 inch overall length

SPEED TIGER

SPEED TIGER ITBTA0250526 carbide tapered end mill ball tip R0.25 1/4" shank 3" OVL pneumatic accessory

SKU CH-AW2C-0YZHS MPN ITBTA0250526

Carbide tapered end mill with ball tip cuts wood, alloy and hardened steels up to HRC45 using nACo coating for heat resistance

  • Product typeEnd Mills
  • Main materialCarbide

Model R0.25

  • Cuts wood, alloy and hardened steels up to HRC45
  • Micro-grain carbide resists wear for long tool life
  • nACo AlTiSiN coating handles high cutting speeds and heat
  • 5 mm ball tip radius with 5.26° taper for precise contours
  • Ground in ISO-9001 factory for consistent quality

Carbide tapered end mill for CNC carving

The Speed Tiger ITBTA0250526 is a solid carbide tapered end mill with a ball tip radius of 0.5 mm. It features a 1/4 inch shank diameter, 1-1/4 inch cutting length and 3 inch overall length. The single side angle measures 5.26 degrees. It is designed for CNC carving in wood, alloy steels and hardened steels up to HRC45.

Sustained cutting performance with nACo coating

The micro grain carbide substrate resists wear during extended machining passes. An nACo AlTiSiN coating lubricates the cutting edges, maintaining stability at high temperatures and providing superior wear resistance at high cutting speeds. This coating offers better heat resistance than TiAlN, TiN or TiCN alternatives. Flutes are ground in an ISO 9001 certified factory for consistent quality.

Verify shank compatibility and material suitability

Ensure your CNC spindle or router accepts a 1/4 inch shank before ordering. The cutter is rated for carbon steels around HB225, alloy steels between HB225 and 325, pre-hardened steels up to HRC45 and hardened steels from HRC40 to 45. It also handles cast iron, aluminum and copper. Buyers needing a different tip radius or taper angle should select another model.

How it compares

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

Price $13.99
Cheaper than about 80% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameSpeed Tiger
Model nameITBTA0250526
Product typeEnd Mills
Size & build
Main materialCarbide

Other versions of this model

2 more in the same range

Questions about this item

How much heat does the nACo coating handle during extended high-speed cuts?

The AlTiSiN nACo coating lubricates the end mill for stability at high temperature and superior wear resistance at high cutting speeds, offering better heat resistance than TiAlN, TiN or TiCN coatings.

What shank size must my collet or holder accept for this 1/4" shank tool?

The shank diameter is 1/4 inch (0.25 inches), so your collet, shrink-fit holder or ER collet must be sized for a 1/4" shank.

Will the 5.26° single-side taper angle clear walls on parts I currently machine with straight end mills?

The 5.26° single-side angle creates a tapered profile; verify your existing CAM toolpaths and fixture clearance allow the wider taper envelope compared to straight-flute tools.

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