Product Description
The CMT Forstner Bit 22mm is a precision-ground boring tool built from super strength SP steel, designed for drilling clean, flat-bottom holes in softwood with repeatable accuracy. Whether you are installing cabinet hinges, shelf pins, or bracket hardware, or routing oval and arched openings at any angle, this 22mm bit delivers long-lasting cutting performance with minimal tear-out. Its right-hand rotation and compact 8x30mm shank make it compatible with both drill press and handheld drill setups, giving woodworkers the versatility to tackle a wide range of joinery and installation tasks.
Key Features
- Super strength SP steel construction - delivers long-lasting cutting performance that holds a sharp edge through repeated use in softwood applications, reducing the need for frequent resharpening or replacement.
- 2 precision-ground cutting edges (Z2) - provide smooth, controlled material removal with each plunge, resulting in flat-bottom holes with consistent depth and clean bore walls.
- 2 ground spurs (V2) - score the wood fiber ahead of the main cutters, preventing splintering and tear-out at the rim of the hole for a chip-free, finished-quality bore.
- 22mm diameter with 8x30mm shank - sized precisely for hinge cup installation and hardware recessing, fitting standard 8mm collets and drill chucks for secure, wobble-free operation.
- Right-hand (RH) rotation - matches the direction of standard drill presses and handheld drills, allowing direct drop-in use without any adapter or setting change.
- Flat-bottom hole geometry - enables the creation of niches, bracket recesses, and frame installation cutouts that sit flush, eliminating the stepped profile left by standard twist or spade bits.
- Compatible with angled drilling applications - allows the user to create oval and arched openings at any angle, expanding design possibilities for decorative woodworking and cabinetry.
Why This Product
- Engineered for precise flat-bottom boring - the combination of 2 ground spurs and 2 precision-ground cutting edges produces clean, accurately sized holes ideal for hinge cup and hardware installation where fit and flush seating matter.
- SP steel extends working life - super strength steel maintains cutting edge integrity across extended runs in softwood, making this bit a reliable long-term addition to a woodworking or cabinetry tool set rather than a consumable.
- Versatile for both structural and decorative applications - from installing brackets and frames to creating arched openings and oval cutouts at any angle, this bit handles a broad range of tasks with a single tool.
- Compact 8mm shank fits common drill equipment - the 8x30mm shank seats securely in standard drill press chucks and handheld drills, making this bit immediately usable without special tooling or adapters.
Specifications
- Manufacturer Part Number: 537.220.31
- Brand: CMT Orange Tools
- Product Type: Forstner Bit
- Diameter: 22mm
- Total Length: 3-35/64"
- Shank: 8x30mm
- Number of Cutting Edges: 2
- Number of Spurs: 2
- Blade Material: Super Strength (SP) Steel
- Rotation: Right-Hand (RH)
Approved Applications
- Drilling precise flat-bottom holes in softwood
- Hinge cup and cabinet hardware installation
- Shelf pin and bracket recess boring
- Creating niches for the installation of brackets, straps, frames, and grids
- Creating oval and arched openings at any angle
Frequently Asked Questions
What materials is this Forstner bit designed to drill?
This bit is designed for drilling precise flat-bottom holes in softwood. The super strength SP steel construction supports long-lasting cutting performance in natural softwood applications.
Can this bit be used at an angle to create oval or arched openings?
Yes. The CMT 22mm Forstner bit is specifically suited for creating oval and arched openings at any angle, making it useful for decorative woodworking and custom cabinetry work beyond standard perpendicular boring.
What shank size does this bit use, and what machines does it fit?
The bit has an 8x30mm shank, which fits standard 8mm drill press chucks and compatible handheld drills. Its right-hand (RH) rotation matches the standard direction of both machine types for direct, secure use.
Why choose a Forstner bit over a spade bit for hinge and hardware installation?
Forstner bits like this one produce flat-bottom holes with clean, chip-free bore walls - achieved here through 2 ground spurs that score the wood ahead of the 2 precision-ground cutting edges. This clean, flat-bottomed result is essential when installing hinges, shelf pins, and recessed hardware that must sit flush without a center-point hole breaking through.
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