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QKJ 73 breast bar vice
QKJ 73 breast bar vice is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
At Krollit, we guarantee a safe and reliable shipping process. Orders are handled with the utmost care and traceability until delivery.
For international shipments, please send your request via the dedicated contact form.
Upon delivery, always sign the delivery note with the words “subject to inspection” to allow for proper handling of any irregularities or discrepancies in the product.
Our goal is to ensure you receive prompt service and a worry-free shopping experience.
QKJ 73 breast bar vice
Description
Technical Specifications
Jaw Width |
Clamping Width |
Weight |
73 mm |
100 mm |
7 kg |
Logistics
Original spare parts available with 3–5 working day shipping. Customer support in Italian available.
Warranty
Warranty terms and support procedures are available on the dedicated Krollit page.
View Krollit warranty termsFAQ / Frequently asked questions
Frequently Asked Questions
QKJ 73 Sine Bar Vice — what is a "sine bar" and what is it used for?
The sine bar is a precision cylinder with fixed and certified diameter and center distance. By placing gauge blocks under the cylinder, a mathematically precise angle of inclination of the vice is obtained: angle = arcsin(thickness / center distance). The QKJ 73 vice with a jaw width of ? mm allows working with precise angles (e.g., 30°, 45°, 60°) on grinding and milling machines — the angle is calculated, not estimated. The QKJ version (compact body) is for small parts; the QGJ version (larger body) is for larger parts and heavier operations.
How is the thickness of gauge blocks calculated for a specific angle?
Formula: thickness = sin(angle) × sine bar center distance. For an angle of 30° and a center distance of 100 mm: thickness = sin(30°) × 100 = 0.5 × 100 = 50 mm. Sine tables pre-calculate these values for all angles — available in ISO standards or as digital tables. The precision of the angle depends on the precision of the gauge blocks used.
Delivery times?
Original spare parts available with 3–5 working day shipping. Customer support in Italian available.
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