CNC router bits and carbide cutting tools with tutorials and technical guides

3-Flute High Aspect-ratio Ball-nose End-mills (MM308) - 1/8" (0.1250" shank)

Think & Tinker 3-flute 1/8 inch shank ball-nose end-mills feature an "positive rake past-center" plunging tip geometry enhanced with high-rake cutting edges and closed-form flute profile. These changes result in bits with improved cutting properties in a wider range of materials. Deep-reach geometries feature flute lengths (depth of cut) greater than 6X the diameter of the tool.

>

Manufactured in the USA, every tool is:

  • 100% measured / optically inspected to insure that EVERY tool meets, or exceeds, our published specifications
  • made from premium grade submicrograin tungsten carbide (HRa 92, HRc 80)

This attention to detail and the use of top quality materials result in tools with dependable cutting characteristics and one of the longest tool lives in the market. Combined with comprehensive customer support, our cutters have become the tools of choice for sign makers, model makers, artists and instrument builders around the world.

MADE IN USA

  • 3 flute, 1/8 in. (6.35 mm) dia. shank, ball-nose tip
  • Overall Length (OAL)- as shown. ±0.010 in.
  • Aspect ratio - min. 6:1
  • Diameter -
    • 0.1250 in. = 0.1248 in. +0.0000 in., -0.0020 in.
  • Runout
    • OAL = 3.00in: TIRmax < 0.0015 in.
  • Max. depth of cut - nominal ±0.005 in.
  • Anticipated Life - depends on material being cut (min 3,000 in, acrylic)
  • Material - solid submicrograin carbide
  • Operating RPM - CNC certified operation 1k RPM to 60k RPM
Carbide 3-flute ball-nose deepreach end mill

Diameter LOC Flutes Shank OAL Depth Rings Reviews Part Number Price
0.1250" (3.18mm) 1.13" (28.6mm) 3 1/8" 3.00" (76.2mm) Not Available MM308-1250-113BL

$34.93