HSS M2 Grade Precision Expandable Reamers DIY Finishing Hand Tool (H12 (27-30.0 mm))

• Premium HSS M2 Grade Blades: This adjustable hand reamer is manufactured with industrial-grade High-Speed Steel (HSS) M2 grade blades, renowned for their extreme hardness and wear resistance. It maintains a sharp cutting edge and strict dimensional accuracy even when working with difficult materials over long periods.
• 27.0 mm – 30.0 mm Adjustable Range (Size H12): Achieve any custom hole size within the 27 mm to 30 mm span with this single tool. This versatility saves you the significant expense of purchasing multiple large-diameter fixed-size reamers.
• Precision Dual-Nut Adjustment: Equipped with high-accuracy restraining nuts at both ends. By loosening one nut and tightening the other, you can adjust the blade diameter with surgical precision, guaranteeing perfect tolerances and a professional custom fit.
• Heavy-Duty Industrial Dimensions: Featuring an Overall Length (OAL) of 250 mm and an 85 mm cutting blade length, the H12 reamer provides exceptional stability and leverage for larger bores and deep boring applications.
• Professional Finishing Tool: The preferred choice for machinists involved in metalworking, automotive engine repairs, and precision machining. It is the dependable solution for resizing worn bushings and delivering a high-accuracy finish to internal bores.
• Smooth & Chatter-Free Operation: The multi-blade geometry is engineered to significantly minimize vibration (chatter) during operation. This results in an exceptionally clean, mirror-like smooth internal finish that meets strict engineering standards.
• Versatile Applications: As part of our comprehensive range (spanning HV to H19), the H12 model is perfect for major projects where durability, accuracy, and professional-grade performance are the highest priorities.

Dispatch Time: 1–2 business days
International Delivery: 5–12 business days (location-wise)
Tracking: End-to-end international tracking available
Packaging: Shockproof & secure export packaging
Customs/Duties: May apply based on destination country
Carrier: DHL / FedEx / UPS (depending on region)

Warranty: 6–12 months (manufacturing defects only)
Returns: Accepted for defective, damaged, or incorrect items
Return Window: 7 days from delivery
Replacement: Free replacement for eligible claims
Process: Email support with product video/photos
Note: Used/damaged by customer items not returnable

Read the user manual before first use

Wear safety gloves & eye protection when required

Keep away from children

Do not overload or misuse the product

Store in a dry, moisture-free environment

Clean tools after use to maintain performance