Home improvement hand tools for measuring internal diameters, designed to speed up checks on holes, slots and recesses. YWBL-WH Telescopic Gauge Set delivers a reassuringly solid feel and consistent readings that take the guesswork out of bore measurement. Will the build and accuracy match workshop demands?
⚡ At a Glance
- • Measuring Range: 8–150 mm inner diameter coverage, suitable for a wide range of bores
- • Best for: Machinists, metalworkers and keen DIYers checking internal diameters
- • Not ideal for: Applications requiring digital readouts or external diameter measurement
Telescopic plungers centre automatically and use constant spring tension for repeatable contact. Heat-treated, precision-ground contact ends resist wear while allowing clearance in small holes.
Quick internal checks – with self-centering double action handles
Double action handles are rigidly attached to the contact plungers and automatically centre the telescopic ends when inserted into a bore. The mechanism means both plungers move in unison to register the internal diameter.
Faster setup and fewer fiddly adjustments, so bore checks take less time and feel more reliable during repeated use.
Repeatable readings – thanks to constant spring tension
A constant spring tension applies uniform pressure between the contact ends and the bore surface, reducing variation caused by differing user force. The consistent contact pressure helps produce steadier measurements.
More consistent measurements from one check to the next, which is especially useful when verifying multiple bores or setting up workpieces.
Durable, accurate contacts – with heat-treated, precision-ground ends
Both contact ends are heat treated and precision ground to a radius so they clear the smallest holes the gauge can enter while maintaining accurate seating against the bore. The treatment improves wear resistance under repeated use.
Longer life for the gauges and sustained accuracy over time, so calibration stays stable through routine workshop use.
✨ The 4 Key Reasons for YWBL-WH Telescopic Gauge Set
- Self-centering double action handles - Ensures repeatable internal measurements with minimal user adjustment needed
- Constant spring tension - Delivers uniform contact pressure for consistent readings across bores
- Heat-treated precision-ground contact ends - Maintain accuracy and resist wear during repeated bore checks
- Six-piece range with pouch - Covers small to large bores, keeps gauges protected and organised
📋 Technical Details at a Glance
- Category: Home Improvement Tools
- Brand: YWBL-WH
- Product ID: B08BLNDR7J
- Set contents: 6-piece telescopic gauge set, pouch included
- Measuring range: 8–150 mm
❓ Frequently Asked Questions
Q: What measuring range do the gauges cover?
A: The gauges cover an internal diameter range of 8–150 mm, as specified in the product details.
Q: Can these gauges check deep bores?
A: Yes, they assist in quick checking of holes, slots and recesses up to 6 inches deep.
Q: Are the contact ends suitable for precision work and durable?
A: Contact ends are heat treated and precision ground to a radius, which improves wear resistance and allows proper clearance in small holes for accurate measurements.
🏆 Our Verdict
Suited for machinists, metalworkers and serious DIYers who need reliable internal diameter checks. The set’s strengths are automatic self-centring handles, constant spring tension and heat-treated, precision-ground contact ends that support accurate, repeatable readings. Although initial outlay may be higher than a single gauge, robust construction and the six-size range make the set a sensible long-term workshop investment.
