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Amana 57138 Solid Surface Round Under Router Bit


Solid Surface Router Bits: Round Under Router Bits, Carbide Tipped: 1/2" Rad x 2-1/8" Dia x 3/4" x 1/2" Shank

Round the lower edge of a counter with the router resting on the upper surface. No need to turn the heavy material over. This tool is especially useful for “job-site” work.

/p>(To complete a full 180° bullnose on 1/2," 1," 1-1/2" or 2" thick stock, use the corner-rounding bit with the radius bearing.) Furnished with Ultra-Glide™ non-marring Delrin®-sleeved ball-bearing guide.

Standard Equipment:

  • 57138 Solid Surface Round Under Router Bit


  • Diameter (D): 2-1/8"
  • Radius (R): 1/2"
  • Cutting Depth (A): 1"
  • Cutting Height (B): 3/4"
  • Shank (d): 1/2"
  • Overall Length (L): 2-7/8"
  • Flutes: 2


  • High quality long lasting European sub-micrograin & micrograin carbide
  • Thick carbide for multiple resharpenings
  • Different carbide grades for different materials
  • Silver induction brazing for maximum carbide bonding strength
  • Produced according to Holz-BG German standards for safety and quality
  • Centerless ground shank for exact fit
  • Multi axis grinding
  • Bodies manufactured in single clamping for superior balance, symmetry, precision and centricity
  • Use of only solid bar stock steel (brazed bits)
  • Shanks laser etched with size, maximum RPM ratings and clamping depth

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