The Benchmark Abrasives 16 Piece forstner bit set gives professional woodworkers a broad range of sizes for clean, accurate flat-bottom holes, recesses, and counterbores in wood, plywood, and MDF. Built with precision-ground, one-piece heat-treated high-carbon steel bits, the set is designed for furniture making, cabinetry, joinery, hardware installation, and other precision woodworking where clean hole edges and controlled depth matter.
Each bit uses a sharp center brad point for fast, accurate positioning and outer cutting spurs that score the perimeter before the main cutting edges remove material, helping produce cleaner edges with reduced splintering. With 16 cutting diameters ranging from 1/4" through 2-1/8", woodworkers can move from smaller precision bores to large flat-bottom recesses without piecing together individual bits.
Product Specifications
Specification
Details
Set Size
16 Pieces
Size Range
1/4" to 2-1/8"
Overall Length
3-1/2"
Shank Diameter
3/8"
Shank Style
Straight Round
Material
Heat-Treated High-Carbon Steel
Quantity
16 Pieces
Features
16-Piece Size Range: Covers sizes from 1/4" through 2-1/8".
Professional-Grade Construction: Heavy-duty heat-treated high-carbon steel for demanding woodworking use.
Precision-Ground One-Piece Design: Consistent cutting geometry and accurate hole sizing.
Self-Centering Brad Point: Helps establish the center of each hole for controlled starts.
Perimeter Cutting Spurs: Help create cleaner edges and reduce splintering.
Efficient Chip Clearance: Helps evacuate chips and debris while reducing heat buildup.
Flat-Bottom Cutting Geometry: Creates accurate recesses and counterbores.
3/8" Straight Round Shanks: Fit suitable three-jaw drill chucks.
Sizes Included
1/4"
3/8"
1/2"
5/8"
3/4"
7/8"
1"
1-1/8"
1-1/4"
1-3/8"
1-1/2"
1-5/8"
1-3/4"
1-7/8"
2"
2-1/8"
Applications & Performance
Ideal for:
Furniture and cabinet construction
Woodworking and finish carpentry
Flat-bottom recesses and counterbores
Hardware installation
Joinery and precision boring
Plug and grommet openings
Removing knots or damaged wood
Blind-hole drilling
Projects requiring multiple bore diameters
Forstner bits are especially useful when a standard twist drill would leave a conical-bottomed hole rather than the flatter-bottomed recess required for many woodworking and hardware applications.
Materials
Designed for drilling:
Solid wood
Plywood
MDF
Machine Compatibility
A drill press is preferred for maximum control over alignment, feed, and drilling depth. The 3/8" straight round shanks fit suitable three-jaw drill chucks, but machine suitability depends on the diameter of the individual bit being used.
Compatible examples include:
RIKON® 30-212VS Drill Press
Delta® 18-900L Drill Press
Powermatic® PM2800B Drill Press
Grizzly® Models: G7943, G7944
DEWALT® DCD800B Drill/Driver
Makita® XFD14Z Driver-Drill
Bosch® GSR18V-535CN Drill/Driver: up to 1-1/2" in hardwood or 2" in softwood; use another machine for the 2-1/8" bit.
For handheld drilling, use rotary drilling mode with a suitable guide jig and verify adequate low-speed torque and cutter capacity for the selected bit size. A drill press is strongly preferred as cutter diameter increases.
Safety Tips
Secure the workpiece firmly with clamps or an appropriate vise.
Use a drill press whenever possible, especially with larger-diameter bits.
Select an appropriate drilling speed for the individual bit diameter and material.
Larger Forstner bits generally require slower operating speeds.
Clear accumulated chips periodically to reduce heat buildup.
Feed the bit steadily without forcing the cut.
Use a sacrificial backer when drilling completely through a workpiece.
The Benchmark Abrasives 16 Piece forstner bit set gives professional woodworkers a broad range of sizes for clean, accurate flat-bottom holes, recesses, and counterbores in wood, plywood, and MDF. Built with precision-ground, one-piece heat-treated high-carbon steel bits, the set is designed for furniture making, cabinetry, joinery, hardware installation, and other precision woodworking where clean hole edges and controlled depth matter.
Each bit uses a sharp center brad point for fast, accurate positioning and outer cutting spurs that score the perimeter before the main cutting edges remove material, helping produce cleaner edges with reduced splintering. With 16 cutting diameters ranging from 1/4" through 2-1/8", woodworkers can move from smaller precision bores to large flat-bottom recesses without piecing together individual bits.
Product Specifications
Specification
Details
Set Size
16 Pieces
Size Range
1/4" to 2-1/8"
Overall Length
3-1/2"
Shank Diameter
3/8"
Shank Style
Straight Round
Material
Heat-Treated High-Carbon Steel
Quantity
16 Pieces
Features
16-Piece Size Range: Covers sizes from 1/4" through 2-1/8".
Professional-Grade Construction: Heavy-duty heat-treated high-carbon steel for demanding woodworking use.
Precision-Ground One-Piece Design: Consistent cutting geometry and accurate hole sizing.
Self-Centering Brad Point: Helps establish the center of each hole for controlled starts.
Perimeter Cutting Spurs: Help create cleaner edges and reduce splintering.
Efficient Chip Clearance: Helps evacuate chips and debris while reducing heat buildup.
Flat-Bottom Cutting Geometry: Creates accurate recesses and counterbores.
3/8" Straight Round Shanks: Fit suitable three-jaw drill chucks.
Sizes Included
1/4"
3/8"
1/2"
5/8"
3/4"
7/8"
1"
1-1/8"
1-1/4"
1-3/8"
1-1/2"
1-5/8"
1-3/4"
1-7/8"
2"
2-1/8"
Applications & Performance
Ideal for:
Furniture and cabinet construction
Woodworking and finish carpentry
Flat-bottom recesses and counterbores
Hardware installation
Joinery and precision boring
Plug and grommet openings
Removing knots or damaged wood
Blind-hole drilling
Projects requiring multiple bore diameters
Forstner bits are especially useful when a standard twist drill would leave a conical-bottomed hole rather than the flatter-bottomed recess required for many woodworking and hardware applications.
Materials
Designed for drilling:
Solid wood
Plywood
MDF
Machine Compatibility
A drill press is preferred for maximum control over alignment, feed, and drilling depth. The 3/8" straight round shanks fit suitable three-jaw drill chucks, but machine suitability depends on the diameter of the individual bit being used.
Compatible examples include:
RIKON® 30-212VS Drill Press
Delta® 18-900L Drill Press
Powermatic® PM2800B Drill Press
Grizzly® Models: G7943, G7944
DEWALT® DCD800B Drill/Driver
Makita® XFD14Z Driver-Drill
Bosch® GSR18V-535CN Drill/Driver: up to 1-1/2" in hardwood or 2" in softwood; use another machine for the 2-1/8" bit.
For handheld drilling, use rotary drilling mode with a suitable guide jig and verify adequate low-speed torque and cutter capacity for the selected bit size. A drill press is strongly preferred as cutter diameter increases.
Safety Tips
Secure the workpiece firmly with clamps or an appropriate vise.
Use a drill press whenever possible, especially with larger-diameter bits.
Select an appropriate drilling speed for the individual bit diameter and material.
Larger Forstner bits generally require slower operating speeds.
Clear accumulated chips periodically to reduce heat buildup.
Feed the bit steadily without forcing the cut.
Use a sacrificial backer when drilling completely through a workpiece.
Keep hands, loose clothing, and hair away from rotating chucks and cutting tools.
Stop drilling and inspect the bit and setup if excessive heat, burning, vibration, or poor cutting develops.
Frequently Asked Questions
The set spans 1/4" through 2-1/8", with the size sequence shown above.
They are designed for clean flat-bottom recesses, counterbores, and precision woodworking holes.
The cutting geometry creates a substantially flat-bottomed recess, although the center brad point can leave a small center mark.
Compatible examples include: RIKON® 30-212VS, Delta® 18-900L, Powermatic® PM2800B, Grizzly® G7943/G7944, DEWALT® DCD800B, Makita® XFD14Z, Bosch® GSR18V-535CN. Other drills and drill presses can also work with the 3/8" round shanks. Match speed and cutter capacity to each bit. For the Bosch®, stay within 1-1/2" in hardwood or 2" in softwood; the 2-1/8" bit needs another machine. Use a guide jig with a handheld drill; a drill press is preferred for larger holes.
3/8" straight round shanks.
Solid wood, plywood, and MDF.
Choose speed for the bit size and wood type, and reduce speed as cutter diameter increases. Follow the bit and machine instructions, and clear chips regularly for a cleaner cut.
No. Operating speed should be adjusted for each cutter diameter and material.
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