Top Bearing Straight Pattern Router Bit with Insert

Posted by author-avatar
On October 1, 2026
0 comments
Two insert-knife straight pattern router bits side by side in workshop
Bottom bearing flush trim router bit D19xd12.7xL65x2T with blue box packaging
Top bearing straight pattern router bit with insert knives full view on white background
Factory batch of insert pattern router bits wing knives and TCT insert knives in box
Dimension drawing of straight pattern router bit for 12x12x1.5mm insert knives Z=4
Dimension drawing of spiral insert router bit for 12x12x2.2mm insert knives Z=4
Laser-marked shank D19 d12.7 L65 2T of straight pattern insert router bit
Factory batch of insert pattern router bits and wing knives on foam pad
Factory production layout of insert router bits hinge bits wing knives and drills
Top bearing straight pattern insert router bit with four knives on wooden bench
Factory rows of insert-knife pattern router bits ready for packing
Dimension drawing of 115mm top bearing insert pattern router bit with four knives

Design and Construction

The top-bearing straight pattern router bit with inserts pairs a 40Cr chrome-molybdenum steel body with replaceable tungsten carbide insert knives. Diameter (ØD) 19 mm with 8, 12 and 12.7 mm shank options, 55 mm cutting length and two teeth (2T); inserts 8 x 8 x 1.5 or 12 x 12 x 1.5 (35°) per the specifications table.

How It Works

The insert knives seat in precision pockets and present ground carbide edges to the workpiece. When an edge dulls, the knife is turned to its second edge or swapped in minutes — the body, its shank and its concentricity stay on the spindle, and the next cut lands at the same dimension.

Applications

  • Pattern routing with top bearing
  • Template-following cuts
  • Straight pattern trimming
  • CNC pattern work

Suitable Materials

  • Melamine-faced particleboard
  • MDF and laminated boards
  • Plywood and veneered panels
  • Solid wood

Suitable materials: melamine-faced particleboard, MDF, laminate HPL, veneered plywood, solid hardwood

The bearing follows the pattern while the insert knife cuts the straight profile.

System Comparison: Replaceable Insert vs. Solid Knife

Insert bits keep the steel body in service and replace only the cutting edges. For production routing and panel work, this is usually the lower-cost way to hold edge quality.

Property Replaceable Insert Knife (This Tool) Solid Profile Knife
Edge replacement Swap the worn insert only; the steel body stays in service Regrind or replace the complete tool
Body material 40Cr chrome-molybdenum steel body, reused across insert changes Whole tool consumed as the edge wears
Downtime per edge change Minutes — index or swap the insert Send out for regrinding or buy a new tool
Profile changes Fit a different insert geometry to the same body New tool required per profile
Edge condition Fresh edge on every change; consistent cut quality Edge quality drifts between regrinds
Best suited for Production cutterheads with repeat profiles One-off profiles and low-volume work

Solid knives remain the better choice for one-off profiles and very low volumes.

Delivery Scope

Single bit. Order by product code with the diameter, shank, cutting length and tooth count stated in the specifications table below.

Why Choose VPOINT

  • One-year warranty on every cutter — defects in material or workmanship are covered for 12 months from delivery.
  • Custom tooling — diameters, bores, cutting widths and tooth counts built to your drawing or sample.
  • Non-standard fabrication — profiles and sizes outside the standard catalogue, including profile restoration.
  • Resharpening service — cutters return to service after regrinding at a fraction of new-tool cost.
  • Factory-direct since 2008 — ISO 9001 manufacturing in Sichuan and Dongguan, China; 40Cr chrome-molybdenum steel bodies; no trading intermediaries.

Send a drawing, a sample or a worn tool, and our engineering team will quote the exact specification you need.

Precision & Quality Control

Every cutter is inspected at micron level before shipment. Cutting diameter (ØD), bore (Ød), cutting width/height (B/H) and overall dimensions are measured against the values listed in the specifications table, and cutting edge runout and concentricity are verified on the assembled tool.

Tools measuring outside tolerance are reground or scrapped — they do not ship. Inspection is performed under our ISO 9001 quality system, with batch records retained for traceability.

Specifications

Product Code Product Specifications Diameter Shank Cutting
 Length		 Alloy Insert Specifications
D d L
VP031-09 D19*d8*L55*2T 19 8 55 8*8*1.5*35°
VP031-13 D19*d12*L55*2T 19 12 55 12*12*1.5*35°
VP031-15 D19*d12.7*L55*2T 19 12.7 55 12*12*1.5*35°

Key words: pattern router bit, top bearing pattern bit, straight pattern trim, insert pattern bit

Newer Top Bearing Flush Trim Router Bit With Inserts
Older REPLACEABLE KNIFE FLUSH TRIM ROUTER BIT WITH DOUBLE BEARING – 2 KNIFE

Reviews

There are no reviews yet.

Be the first to review “Top Bearing Straight Pattern Router Bit with Insert”

Your email address will not be published. Required fields are marked *