Description
HSS Counterbore 10 mm (Medium Fit) – Somta Series 774
The SOMTA 7741000 – 10 mm HSS Counterbore is a precision tool designed for enlarging holes to allow cap screw heads or bolt heads to sit flush with or below the surface. Manufactured from high-performance High-Speed Steel (HSS), this counterbore features a medium fit tolerance and is equipped with a removable pilot for accurate centering. Ideal for metalworking and mechanical assembly, it ensures consistent seat depths and alignment for socket head cap screws, bolts, and similar fasteners.
Key Features & Benefits
- 10 mm Cutting Diameter – Sized to accommodate common metric cap screw heads.
- Medium Fit – Provides a balanced clearance suitable for general-purpose fastener seating.
- Removable Pilot – Ensures accurate guidance in pre-drilled holes and minimizes misalignment.
- High-Speed Steel (HSS) – Offers durability, heat resistance, and excellent edge retention.
- Straight Flutes – Promote stable cutting and effective chip evacuation.
Technical Specifications
- Part No: 7741000
- Tool Type: Counterbore
- Cutting Diameter: 10 mm
- Fit Type: Medium Fit
- Pilot: Removable, guided type
- Flute Type: Straight Flute
- Material: High-Speed Steel (HSS)
- Application: Counterboring for socket head cap screws and bolts
Why Choose the SOMTA 7741000 Counterbore?
- Clean, Consistent Recesses – Delivers flat-bottomed holes for flush bolt seating.
- Accurate Pilot Guidance – Ensures centered cutting and avoids drift or chatter.
- Industrial-Grade HSS – Reliable performance across a range of metal types and production conditions.
- Ideal for Fabrication & Assembly – Perfect for mechanical, structural, or precision fixture work.
The SOMTA 7741000 HSS Counterbore is a must-have tool for machinists and fabricators seeking high-quality bolt seating and alignment—delivering a professional-grade finish with every cut.
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