Accurate Measurement of Internal Dimensions
Inside spring calipers are essential tools for accurately measuring and transferring precise inside dimensions, such as the internal diameters of holes, grooves, and cylinders.
Durable Carbon Steel Construction
These high-quality calipers are made from premium-grade carbon steel, ensuring long-lasting durability and performance.
Precision Polished Points and Strong Flat-Leg Design
The hardened, rounded, and finely polished points provide precision in every measurement, while the robust flat-leg construction enhances overall strength and durability.
Secure Settings with Hardened Spring and Adjustment Nut
Equipped with a substantial hardened spring fulcrum and a smooth-running adjustment nut, these calipers guarantee secure and reliable settings during use, preventing accidental slippage.
Ergonomic and User-Friendly Design
Their ergonomic design ensures easy adjustment, making them ideal for both professional machinists and hobbyists.
Excellent Value for Accuracy and Reliability
With their excellent construction and competitive price, these inside spring calipers offer outstanding value for anyone seeking accuracy and durability in their measuring tools.
Where to receive our products
United States, Canada, Mexico, United Kingdom, Germany, France, Spain, Italy, etc.
Shipping and Time
| Nation | Shipping | Reference Time |
| United States | Free Shipping | 7-10 business days |
| Canada | Free Shipping | 7-10 business days |
| Mexico | Free Shipping | 7-10 business days |
| United Kingdom | Free Shipping | 7-10 business days |
| Germany | Free Shipping | 7-10 business days |
| France | Free Shipping | 7-10 business days |
| Spain | Free Shipping | 7-10 business days |
| Italy | Free Shipping | 7-10 business days |
Freight
All items on the site are free to ship. Delivery time is about 7-10 business days.
Express shipping delivery time is about 5-7 business days.
| Express Shipping Cost（price/cost）（5-7 business days） | $0~$100/$15 |
| $100~$200/$30 | |
| $200~$300/$45 | |
| $300~$400/$60 | |
| $400~$500/$75 | |
| $500~$600/$90 | |
| $600~$700/$105 | |
| $700~$800/$120 | |
| $800~$900/$135 | |
| $900~$1000/$150 | |
| $1000~$2000/$300 | |
| $2000~$3000/$500 | |
| ＞$3000/$700 |
Packages are shipped within 3-5 business days of your order. No delivery on non-business days and holidays.
Track shipping
Track shipping for all orders. Your tracking code will appear in your order shipping email.
Shipping templates are not available for oversized or overweight items
If you have any questions, you can always contact us and we will reply to you as soon as possible.
Email: service@katway.com
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