Product Description
CMT Wedge for Insert Knives - 15/32 in. x 1/2 in. x 1-31/32 in. is a precision replacement wedge designed to secure insert knives within compatible CMT cutter heads and router bit bodies. This wedge replacement part keeps knife inserts firmly locked in position during operation, ensuring clean, consistent cuts and reliable performance across router bit applications that accept 12mm (15/32 in.) and 12.7mm (1/2 in.) diameter insert knives with a cutting height specification of 6.5mm.
Key Features
- Designed for CMT cutter heads and router bits with knives (series 651, 692, 693, 695) - ensures direct compatibility with the correct tool bodies, eliminating guesswork during replacement
- Fits insert knives with a 15/32 in. (12mm) and 1/2 in. (12.7mm) knife diameter - covers the two most common insert knife diameter sizes in this CMT range, making this wedge broadly useful across multiple bit models
- Compact wedge dimensions (cutting height 6.5mm, total length 3mm) - the precise geometry locks knife inserts securely against the bit body, preventing movement or chatter during cutting passes
- Purpose-built as a dedicated replacement component - restoring a worn or damaged wedge brings the cutter head back to full working condition without replacing the entire router bit body
Why This Product
- Restores knife retention on CMT cutter heads without the cost of a full bit replacement - the wedge is the single component responsible for holding insert knives firmly in place, and replacing it directly addresses knife slippage or loosening issues.
- Compatible with CMT series 651, 692, 693, and 695 cutter heads - confirmed fitment across multiple CMT product lines means this one wedge covers a range of existing tools in a shop.
- Machined to accept 12mm and 12.7mm insert knife diameters - the dual-diameter compatibility means this wedge works with both 15/32 in. and 1/2 in. knife profiles without needing separate part numbers for each size.
- Keeps insert knife cutting geometry consistent - a properly seated wedge holds each knife at the correct angle and depth, which directly affects cut quality, surface finish, and repeatable results from pass to pass.
Specifications
- Brand: CMT Orange Tools
- Order Number: 651.999.03
- Diameter: 48.5mm
- Cutting Height: 6.5mm
- Total Length: 3mm
- Dimensions: 15/32 in. x 1/2 in. x 1-31/32 in.
- Compatible Series: 651, 692, 693, 695
- For Use With: CMT insert router bits and cutter heads with 12mm (15/32 in.) and 12.7mm (1/2 in.) knives
Frequently Asked Questions
Which CMT cutter head and router bit series is this wedge compatible with?
This wedge is compatible with CMT cutter heads and router bits in the 651, 692, 693, and 695 series that use insert knives with a 12mm (15/32 in.) or 12.7mm (1/2 in.) knife diameter.
What is the purpose of a wedge in a CMT insert knife router bit?
The wedge locks the insert knife securely within the cutter head or router bit body. It holds the knife at the correct position and angle during operation, preventing movement that could affect cut quality or cause safety issues.
What knife diameter does this wedge accommodate?
This wedge is designed for insert knives with a diameter of 12mm (15/32 in.) and 12.7mm (1/2 in.), making it suitable for both of those common knife sizes used in compatible CMT cutter heads.
How do I know when a wedge needs to be replaced?
A wedge should be inspected when insert knives show signs of movement, looseness, or inconsistent seating within the cutter head. Replacing a worn or damaged wedge restores secure knife retention and consistent cutting performance.
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