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11-150mm / 0.43-6" Digital Groove Caliper - 1520 Series (Insize)
| Range (mm) | 11-150 |
| Range (Inch) | 0.43-6 |
| Accuracy | ±0.04mm |
| Resolution | 0.01mm/0.0005 |
Learn more about Klarna
Description
The 1520 Insize Digital Inside Groove Caliper is a compact, precision instrument designed to measure groove diameters inside small bores with a clear digital readout. Made from stainless steel for long tool life, it withstands daily machine shop wear while delivering fast, repeatable inside-bore measurements for engineers, inspectors, and technicians alike. With a 11–150 mm (0.43–6") measuring range and a 0.01 mm (0.0005") resolution, you get accurate readings quickly, plus the convenience of mm/inch conversion and optional SPC data output for traceable quality records.
- Wide range and precise readings: Measures groove diameters inside small bores from 11 to 150 mm (0.43 to 6 in) with 0.01 mm (0.0005 in) resolution for quick, repeatable results.
- Durable stainless steel construction: Built to endure daily shop wear, delivering lasting accuracy and reliable performance over time.
- Data capture and accessories ready: Optional SPC data output cable (7302-SPC5A) and depth stop (6143) simplify data collection and expand setup for QC workflows.
This digital inside-groove caliper helps you speed up groove-diameter inspections, minimize downtime, and maintain consistent results across operators. Its sturdy build, clear readout, and optional data output support streamlined QC, precise assembly, and dependable measurements in a wide range of machining and engineering applications.
Part Numbers
- Protool Part Number
- 1520-150
- Brand
- Insize
- Category
- Measuring Tool
Delivery
Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.
Returns
14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.
Technical Support
Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.
Trade Accounts
Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.
What time are Protool open?
We are open Monday to Friday between 8:30am and 5pm.
Do you offer Free Next Day delivery?
Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.
We also offer the following:
- Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
- DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
- Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
- DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.
For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.
*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.
