Verified 15° Geometry
The exact CMT row specifies a 15° chamfer angle and 31/32-inch (24.61 mm) diameter.
CMT Orange Tools 15° Chamfer Bit 31/32-Inch Diameter 1/2-Inch Shank
CA$999.99
In stock
SKU
857.503.11
Product Type
HW Chamfer Router Bit
Family / Series
CMT 8/957 Chamfer Router Bits
Chamfer Angle
15°
Cutting Diameter
31/32 inch (24.61 mm)
Cutting Length
7/8 inch (22.23 mm)
Overall Length
2-51/64 inches (70.64 mm)
Shank
1/2 inch (12.7 mm)
Geometry
Z2 · HW Carbide · Right-Hand Rotation
15° HW
Chamfer Router Bit
Bearing-Guided Chamfer Bit
CMT 857.503.11 is the exact 15° bearing-guided chamfer bit with a verified 31/32-inch (24.61 mm) cutting diameter, 7/8-inch (22.23 mm) cutting length, 1/2-inch (12.7 mm) shank, two carbide-tipped cutting edges, and right-hand rotation.
15°Chamfer Angle
31/32 inDiameter · 24.61 mm
7/8 inCutting Length · 22.23 mm
Z2 · RHCutting Geometry
Bearing-Guided Chamfer Bit
A carbide-tipped profile bit for 15° bevels and chamfers in compatible professional routing applications. The bearing-guided design supports consistent edge following on designated equipment.
CMT Orange ToolsHW Carbide1/2 in · 12.7 mm ShankSKU 857.503.11
For compatible professional routing equipment accepting a 1/2-inch (12.7 mm) shank. The official row references shield 990.423.00, bearing 791.003.00, screw 990.058.00, and hex key 991.057.00.
Main Product Description
CMT 857.503.11 is one exact Item Code in the official 8/957 chamfer-router-bit family. The live variation row specifies a 15° angle, 31/32-inch (24.61 mm) diameter, and 7/8-inch (22.23 mm) cutting length.
The verified overall length is 2-51/64 inches (70.64 mm), with a 1/2-inch (12.7 mm) shank, HW carbide cutting material, and right-hand rotation. Supporting manufacturer data identifies two carbide-tipped cutting edges and CMT’s orange PTFE non-stick coating.
CMT describes the family for clean bevels and chamfers in edge work, aligned multi-sided forms, decorative projects, and larger architectural components. Exact selection should be based on the official 31/32-inch diameter rather than rounded one-inch reseller naming.
Technical Specifications
Series 8/957 · SKU 857.503.11
- CMT Orange Tools
- HW Chamfer Router Bit
- 857.503.11
- 8/957 — Chamfer Router Bits
- 15°
- 31/32 inch (24.61 mm)
- 7/8 inch (22.23 mm)
- 2-51/64 inches (70.64 mm)
- 1/2 inch (12.7 mm)
- 2
- HW Carbide-Tipped
- Right-Hand (RH)
- Surface Treatment: CMT Orange PTFE Non-Stick Coating · Bearing Shield: 990.423.00 · Guide Bearing: 791.003.00 · Bearing Screw: 990.058.00 · Hex Key: 991.057.00
- For compatible professional routing equipment accepting a 1/2-inch (12.7 mm) shank. The official row references shield 990.423.00, bearing 791.003.00, screw 990.058.00, and hex key 991.057.00.
Best Fit Applications
15° Edge Chamfers
Bevel Profiles
Multi-Sided Components
Decorative Edge Work
Architectural Components
Product Highlights
Z2 HW Cutting Edges
Two carbide-tipped cutting edges provide the documented right-hand profile configuration.
Serviceable Bearing System
The official row identifies the matching shield, bearing, screw, and hex-key references.
Compatibility & Professional-Use Notes
Confirm exact Item Code 857.503.11, its verified 31/32-inch (24.61 mm) diameter, and a compatible 1/2-inch (12.7 mm) interface. Inspection, installation, and operation are for qualified personnel using appropriate professional equipment, guarding, workholding, extraction, and current CMT and machine documentation. Replace bearing-system components only with verified compatible parts.
Verified 15° Chamfer Geometry for Professional Edge Work
CMT 857.503.11 combines a 15° angle, 31/32-inch (24.61 mm) diameter, 7/8-inch (22.23 mm) cutting length, and 1/2-inch (12.7 mm) shank.
The Z2 HW carbide geometry, right-hand rotation, bearing guide, and serviceable spare-part system define the exact variant.