Draper Inside Spring Calipers 39451 - 150mm

The Draper 39451 is a precise 150 mm inside spring caliper designed for accurate internal measurements. It features a fine ground surface and adjustment via a knurled wheel, providing reliable readings in professional and DIY tasks. The tool is constructed from metal with a blue finish and is ready to use straight out of the box, without needing installation or additional accessories. It is compact and easy to handle, making it suitable for a range of internal dimensional tasks where consistent, repeatable measurements are required. The caliper is compatible with standard internal measurement tasks and delivers a straightforward solution for determining internal dimensions up to 150 mm.

Features

• Internal measurement range: 0–150 mm
• Knurled wheel adjusts for precise readings
• Metal with a fine ground finish
• Compact, easy to handle for professionals and DIY
• Blue color; ready to use out of the box