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  • Ratings Standard Delivery: £4.99
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  • Delivery Delivery Estimate: 2 to 3 working days
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Technical Specification
PRODUCT NUMBER 057202539625397310083100931010310113101231013310143101531018310193102031024
Length 165mm170mm180mm190mm200mm210mm225mm235mm245mm245mm290mm332mm
Length (mm) 111213141516171819202125

Q 1. What does the HI-TORQ® ring profile do differently from a standard ring spanner?

A. The 12-point HI-TORQ® ring ends engage the flats of the fastener rather than the corners. This spreads the load across the flats, transmitting more torque to the nut or bolt whilst reducing the risk of rounding or damaging the fastener corners.

Q 2. Why is an S-shape spanner useful in confined spaces?

A. The S-shape offsets the two ring ends, allowing the spanner to reach around obstacles where a straight tool cannot be positioned. The curved profile reduces the swing arc needed between strokes, making it well suited to restricted working environments.

Q 3. What is the ratchet arc on the Draper 3946 spanner?

A. The 100-tooth ratchet mechanism provides a 3.6-degree movement arc per tooth, enabling effective ratcheting even where only a very small swing angle is available.

Q 4. What material and finish is used on the Draper Expert 3946 spanner?

A. The spanner is manufactured from hardened and tempered chrome vanadium steel. A mirror chrome plate finish is applied over the steel to provide corrosion protection.

Q 5. Is this spanner available as part of a set?

A. Yes. The 19 x 22mm size is available individually or as part of a five-piece set, which is supplied in a protective wallet and roll.

Q 6. How long does delivery take?

A. Standard UK mainland delivery is 3–5 working days.

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