Question 1

What is the Hanna HR® modular reaming system?

Accepted Answer

The Hanna HR® is a precision modular reaming system in which the tool body is permanently reused and only the cutting insert is replaced. The change is preset-free and requires no adjustment, with edge positioning repeatability ≤ 3 µm. Compliant with ISO 16090-1.

Question 2

What diameter range does HR® cover?

Accepted Answer

From Ø 18.600 mm to Ø 140.600 mm in a single system — two architectures: monoblock for small diameters and HMS® modular for medium and large diameters.

Question 3

What tolerance and repeatability does HR® deliver?

Accepted Answer

Tolerance from ±2.5 µm and controlled edge positioning repeatability ≤ 3 µm — no micrometer readjustment required at each change.

Question 4

How long does an insert change take?

Accepted Answer

≤ 25 seconds for the full cycle: pull the assembly out of the HSK/BT taper (~8 s), loosen 5× DIN 912 M4×5 screws (~4 s), swap the insert (~5 s), retighten to 22.5 N·m (~5 s), reclamp in the machine (~3 s). No preset, no zero reset — the HSK-A / BT taper repeatability holds the position.

Question 5

Which ISO material groups does HR® cover?

Accepted Answer

Groups P, M, K, N, S and H — steels, stainless, cast irons, non-ferrous, heat-resistant alloys and hardened materials.

Question 6

Which machine interfaces are supported?

Accepted Answer

HSK-A, HSK-C, BT, ISO, JIS, Flange R/A — every standard machine and clamping interface can receive the Hanna HR® system.

Question 7

How does the HR® system contribute to sustainability?

Accepted Answer

By reusing the tool body and replacing only the insert, carbide consumption is significantly reduced compared with solid carbide solutions. Regrinding and retipping are also supported, preserving resources and lowering CO₂ emissions.

Question 8

Does HR® replace solid carbide and adjustable-blade reamers?

Accepted Answer

Yes, for precision holes from Ø 18.6 mm upward. HR® delivers equivalent or superior tolerance with lower cost per part and lower carbide consumption.

Criterion	Conventional system	Hanna HR®
Edge change	With preset · micrometer adjustment · up to 5 min	▸Preset-free · no adjustment · ≤ 25 s
Micrometer readjustment	Required at every change	▸Not required
Positioning repeatability	Variable — adjustment required	▸≤ 3 µm controlled
Consumables	Body + cutting element	▸Insert*
Machine intervention	Remove · adjust · reassemble · re-zero	▸Assembly out · preset-free swap, no adjustment · back in — no zero reset
Modularity	Dedicated body	▸One body per Ø range

HANNA HR^®

Tempo de troca e ajuste

Velocidade de corte

Modular reaming system

Ø 18.600 → Ø 35.599

Ø 35.600 → Ø 140.600

Preset-free

Higher cutting speed

One body, multiple diameters

Gearbox housing

HR® vs conventional system

The HR® system in the field.

Frequently asked questions about the Hanna HR® system

Configure your HR® in ≤ 25 s.

HANNA HR®