CMT Forstner Bit - 38mm Diameter, 10mm Shank, Right-Hand Rotation is a precision boring tool engineered in super strength SP steel for drilling clean, flat-bottom holes in softwood and light wood applications. Designed for woodworkers who need accurate, repeatable results, this 38mm bit produces smooth bore walls and crisp entry circles - making it the go-to choice for hinge installation, shelf pin boring, and creating arched or oval openings at any angle. Whether you are working at a drill press or using a handheld drill, this right-hand rotation Forstner bit delivers the control and cutting performance that detailed woodworking demands.

Key Features

• Super Strength SP Steel Construction - provides long-lasting cutting performance and resistance to dulling over repeated use, reducing the need for frequent bit replacement.
• 2 Precision-Ground Cutting Edges - score and shear wood fibers cleanly so flat-bottom holes come out smooth and dimensionally accurate, pass after pass.
• 2 Ground Spurs (V2) - score the perimeter of the bore ahead of the main cutters, preventing tearout and delivering chip-free hole walls even at larger diameters like 38mm.
• Toothed Rim Design - at 38mm (above the 25mm threshold), the toothed rim helps prevent overheating during longer cuts, extending bit life and maintaining cut quality.
• Precision-Balanced Centre Point - keeps the bit locked on-center at plunge, so you get repeatable positioning without drift - critical for hinge mortises and hardware bores that must align precisely.
• 10x30mm Shank - the 10mm round shank seats securely in drill press chucks and handheld drill chucks, providing stable engagement and reducing vibration during the cut.
• Right-Hand Rotation (RH) - compatible with all standard drill press and handheld drill setups, so no special tooling or adapters are needed.
• 90mm (3-35/64 in.) Overall Length - offers enough reach for through-boring in typical softwood stock thicknesses while keeping the bit rigid and controllable.
• Capable of Drilling at Any Angle - create niches, oval openings, and arched cutouts in any orientation, giving woodworkers flexibility for decorative and structural work alike.

Why This Product

• Engineered for flat-bottom accuracy - when hinge installation, shelf pin placement, or hardware recessing demands a clean, flat floor with no center drill mark, a Forstner bit is the correct tool, and the 38mm diameter covers a wide range of common hardware bore sizes in one bit.
• Toothed rim prevents overheating at this diameter - at 38mm, bore friction is significantly higher than at smaller sizes. The toothed rim design addresses this directly, keeping cut quality consistent throughout deeper passes in softwood.
• Versatile beyond straight plunge drilling - the ability to drill overlapping holes, angled bores, and arched openings means this bit handles creative joinery and decorative cutouts that standard twist bits cannot achieve.
• Long-lasting SP steel means fewer replacements - super strength steel construction is built for sustained performance, so professionals and serious hobbyists alike get extended service life from a single bit.

Specifications

• Manufacturer Part Number: 537.380.31
• Brand: CMT Orange Tools
• Product Type: Forstner Bit
• Diameter: 38mm
• Total Length: 3-35/64 in.
• Shank: 10x30mm
• 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 installation and hardware recess boring
• Shelf pin and bracket mounting hole drilling
• Creating arched and oval openings at any angle
• Drilling niches for installation of brackets, straps, frames, and grids
• Cabinet hardware installation
• Overlapping hole boring for decorative and structural cutouts