H7 Left-Spiral HSS Chucking Reamer | HSS & TiN | 3–16mm

BB HSS & HSS-TiN Chucking Reamers

Professional-grade chucking reamers engineered for high-precision hole finishing. Available in standard HSS (High Speed Steel) and premium HSS-TiN (Titanium Nitride Coated) versions — choose the right tool for your application.

• ✅ H7 tolerance — tight precision for demanding fits
• ✅ Left spiral flute — smooth chip evacuation, reduced chatter
• ✅ Cobalt-enhanced HSS — superior wear resistance and heat tolerance
• ✅ TiN coating option — extends tool life up to 3× vs standard HSS
• ✅ Diameter range: 2mm – 16mm — covers most common hole sizes
• ✅ Suitable for steel, cast iron, aluminum, copper and other metals

Dimensions Reference (mm)

d2 × 11 × 49  |  d2.5 × 14 × 57  |  d3 × 15 × 61
d4 × 19 × 75  |  d4.5 × 21 × 80  |  d5 × 23 × 86
d5.5 × 26 × 93  |  d6 × 26 × 93

About BB Tools

We are a professional manufacturer specializing in the development and production of precision machining tools. Our full range covers reamers, end mills, drills, and more — all built to consistent quality standards.

Feel free to mix and match different specifications from our store in a single order — we'll ship everything together as one package.

SHIPPING & RETURNS

Shipping methods and applicable charges are shown at checkout. Delivery times are estimates and may vary by destination, carrier, customs clearance, product availability, and other factors.

Returns are accepted only for unused, unmounted, and untested items in their original condition. Cutting tools that have been used, mounted, tested, or used for machining are not eligible for change-of-mind return. Defective, damaged-on-arrival, or incorrect items are handled according to our Return & Refund Policy.

Please refer to our Shipping Policy and Return & Refund Policy for full details.