Stahlwille Inch deep offset ring spanners, 3/8" x 7/16"

Stahlwille 20a is the inch-size version of the 20: a double ended ring spanner range in 11 sizes from 1/4 x 5/16" to 1 1/8 x 1 5/16", from 180mm to 365mm long. The rings are deep offset at 75°.

The bi-hex (double hexagon, 12-point) profile carries Stahlwille's AS-Drive (Anti-Slip Drive) form, which transmits high forces to the flats of nuts and bolts without damaging them. The spanners are Chrome Alloy Steel, chrome-plated. The spanners are forged in a die, hardened and quenched in an oil bath, with a double-T profile for bending strength and a round finish for grip.

Where this product is used

• Inch-series nuts and bolts from 1/4" to 1 5/16" across flats
• Equipment built to inch sizes where a deep offset ring spanner is wanted
• Kits that pair a metric 20 range with inch sizes

Features

• Deep offset ring spanner, 75°
• 11 sizes from 1/4 x 5/16" to 1 1/8 x 1 5/16"
• Bi-hex (12-point) profile with AS-Drive anti-slip form
• Chrome Alloy Steel, chrome-plated
• Forged in a die, hardened and quenched in an oil bath
• Double-T profile for bending strength, round finish for grip

Key specifications

Choosing the right option

The 20a is the deep offset inch-size ring spanner. For metric sizes see the Stahlwille 20 Deep Offset Double Ended Ring Spanners. For inch sizes with a shallow 10° offset and HPQ steel see the Stahlwille 230a Shallow Offset Double Ended Ring Spanners. The 20a/10 imperial offset ring spanner set (10-piece) covers 1/4 x 5/16" to 7/8 x 15/16" in one pack.

Related Stahlwille products: 20a/10 imperial offset ring spanner set (10-piece), imperial combination spanners, imperial ratchet ring spanners, imperial flare nut spanners.