Ivy Classic - Square Power Bit, 2-3/4 inch #1

Get precise control on small Robertson screws—even in tight, recessed spots. This 2-3/4" SQ1 power bit pairs a precision-machined square tip with a heat-treated S2 tool-steel core for tight, low cam-out engagement. The extended length improves sightlines past chucks and guards, while the 1/4" hex shank locks securely into drills, impact drivers, and magnetic holders—perfect for cabinetry hardware, fixtures, and light assemblies.

Key Features

• Precision SQ1 square tip for positive bite and reduced cam-out on small fasteners.
• Heat-treated S2 tool steel for strong torque resistance and long service life.
• 2-3/4" long-reach design boosts access, visibility, and stability in recessed areas.
• 1/4" hex shank fits standard bit holders, drills, impact drivers, and magnetic sleeves.
• Tight manufacturing tolerances for wobble-free driving and cleaner screw heads.
• Wear-resistant finish to help fend off rust and shop grime.
• Versatile for cabinetry, furniture hardware, electrical/lighting fixtures, and general SQ1 fastening.

Brand / Model: Ivy Classic — Square Power Bit, #1, 2-3/4"

Product Type: Square (Robertson) long-reach power driver bit

Weight: ~0.35–0.55 oz (single bit; approximate)

Dimensions (Overall Length): 2-3/4 in (70 mm)

Material: Heat-treated S2 tool steel

Finish / Coating: Wear-resistant black oxide (or similar) for corrosion protection

Tip Size / Drive: Square #1 (SQ1)

Shank Size: 1/4" hex (6.35 mm)

Hardness / Strength: Impact-driver compatible S2 (torque-rated; typical)

Fit / Geometry: Precision-machined square profile for tight engagement and reduced cam-out on small fasteners

Magnetics: Works with magnetic bit holders (bit itself non-magnetized unless noted)

Compatibility: Standard drill/drivers, impact drivers, and 1/4" hex bit holders

Primary Applications: Cabinetry hardware, furniture assembly, electrical/lighting fixtures, and general SQ1 fasteners in recessed or tight locations

Operating Notes: Seat fully in the screw recess, apply firm but controlled in-line pressure, use appropriate speed/torque; replace if edges show wear

Included: One 2-3/4" #1 square power bit (holders sold separately)

Q: Will this 2-3/4" #1 square (Robertson) bit fit my drill or impact driver?
A: Yes—its 1/4" hex shank fits standard bit holders, drills, and most impact drivers.

Q: When should I choose the 2-3/4" length instead of a 2" bit?
A: When screws are recessed or obstructed; the extra reach improves sightlines and clearance around chucks, guards, and trim.

Q: Is it impact-driver compatible?
A: Yes—heat-treated S2 tool steel handles impact use; apply steady in-line pressure and match torque to the fastener.

Q: How do I prevent cam-out on small SQ1 screws?
A: Seat the tip fully, keep firm but controlled axial pressure, use lower speed/torque appropriate for small fasteners, and replace the bit if edges show wear.