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SHARPRO SPWB5M1LX6.22 1/4-Inch O-Flute Up-Cut CNC Router Bit1 / 6
Product guide

SHARPRO SPWB5M1LX6.22 1/4-Inch O-Flute Up-Cut CNC Router Bit

SHARPRO SPWB5M1LX6.22 is a single-flute, up-cut O-flute CNC router bit listed for a 1/4-inch diameter and shank. Its carbide construction and chip-clearing design are aimed at routing materials including aluminum, acrylic, plastic, PVC, MDF, plywood, and wood.

At a glance

  • O-flute, single-flute geometry is described as leaving room for chip evacuation during cutting.
  • Up-cut cutting lifts chips away from the cut, a useful trait for chip removal during CNC routing.
  • The listing names aluminum, acrylic, plastic, PVC, MDF, plywood, and wood as compatible materials.
  • Manufacturer claims a ±0.05 mm tolerance, but this is a listing claim rather than an independently verified measurement.
Price
$56.39Save 20%

Reference price: $70.49

Price checked: Nov 14, 2026

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Often bought together

Pros and cons

Pros

  • Listed for a broad range of materials, including aluminum and plastics as well as wood-based stock.
  • The single-flute up-cut design prioritizes chip clearance, which may help reduce chip buildup in suitable setups.
  • Customer feedback reports sharpness and clean cuts, including use on aluminum and acrylic.

Cons

  • Up-cut geometry lifts chips and may not suit work where the top surface needs the edge control associated with a down-cut bit.

Technical specifications

8 specifications
Identity
BrandSHARPRO
ModelSPWB5M1LX6.22
Dimensions and cutting
Size1/4" DIA - 7/8" CL - 1/4" SHK
Cutting diameter0.25 inches
Cutting length22 millimeters
Cut typeUp-Cut
Number of flutes1
Materials and construction
Material listedTungsten Carbide

What to know before buying

Listing details to confirm

The listing gives a 7/8-inch cutting length in its size string and a 22 millimeter cutting length elsewhere. It also describes the tool as solid carbide in feature text while the material field says tungsten carbide. Confirm the dimensions and material wording for the selected listing before purchase. Use suitable feeds, speeds, and workholding for the material and machine.

What’s in the box

Included
  • 5 router bits

Who is it for?

A good fit for

  • CNC users seeking a 1/4-inch-diameter, 1/4-inch-shank O-flute bit for routing aluminum, acrylic, plastics, or wood-based materials.
  • Buyers prioritizing an up-cut profile and chip evacuation for slotting, grooving, pocketing, profiling, or trimming.

Less suited to

  • Those who specifically need a down-cut bit to push chips downward for improved top-edge control.
  • Buyers who need fully reconciled dimensions or a separately confirmed material specification before ordering.
SHARPRO SPWB5M1LX6.22 1/4-Inch O-Flute Up-Cut CNC Router Bit · photo 2
Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 270 ratings
  • 5 stars78%78%
  • 4 stars10%10%
  • 3 stars4%4%
  • 2 stars1%1%
  • 1 star7%7%

Customer feedback highlights perceived sharpness, clean cuts, and use across materials such as aluminum and acrylic. Durability reports are mixed, including both accounts of lasting performance and reports of breakage during early use. These experiences matter for material choice and machining setup, but do not establish a guaranteed service life. The generally positive aggregate rating coexists with a smaller low-star share, so it should not be read as a performance guarantee.

Positive themes

  • Customers report sharpness, clean cuts, and cutting performance across multiple materials.

Negative themes

  • Some customer feedback reports bits breaking early, including during the second hole.

Mixed feedback

  • Durability feedback varies, with some customers describing long-lasting performance and others reporting early breakage.

Frequently asked questions

What materials is this bit listed for?

The listing names aluminum, acrylic, plastic, PVC, MDF, plywood, and wood. A separate product description also mentions brass, copper, and soft metals.

What does the up-cut design do?

The listing describes an up-cut as lifting chips away from the cut to aid evacuation. It contrasts this with down-cut geometry, which pushes chips downward for better top-edge control.

What are the bit's listed dimensions?

The size string states 1/4-inch diameter, 7/8-inch cutting length, and 1/4-inch shank. Another field gives a cutting length of 22 millimeters, so the cutting-length details are inconsistent.

How many bits are included?

The listing identifies five items and gives an included-components entry of 5. The precise package contents should be checked on the selected listing.

SHARPRO SPWB5M1LX6.22 1/4-Inch O-Flute Up-Cut CNC Router Bit · photo 3
Additional product photo 3

Alternative options

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