Internal Coolant Quick Change Self Locking Drill

RONGKE supplies the Internal Coolant Quick Change Self Locking Drill as a drilling-tool manufacturer in China. Start the purchase specification with the combination of TDPA tip fit and internal coolant delivery. This self-locking drill combines a replaceable front drill tip with coolant passages through the body. It is selected when the machine can supply coolant through the holder, with the body length chosen independently for the required hole depth.

Configuration Overview

Internal passages connect the coolant supply to the front of the self-locking body. Confirm that the holder transfers fluid correctly before choosing the length needed for the hole.

Key Facts at a Glance

Selection Checklist

• Verify coolant transfer through the holder

Confirm that the holder supplies the tool inlet and that the assembled connection is correctly sealed. Internal passages alone do not establish machine compatibility.

• Select depth independently of coolant type

The self-locking family lists 1.5D, 3D, 5D, 8D and 12D. Internal coolant is a family feature, not an additional numerical depth series.

• Match TDPA tip and locking size

Use the Ø8–32.9 mm table and the corresponding locating group. Confirm that the fitted tip leaves the designed coolant outlets unobstructed.

• Specify the coolant verification scope

Agree a flow or leakage check for the complete assembly. A pressure test requires a separately agreed pressure and duration because no universal rating is published.

Machining and Setup Considerations

Choose the Internal Coolant Quick Change Self Locking Drill when the job calls for the combination of TDPA tip fit and internal coolant delivery. This page addresses self-locking drilling where the holder provides through-tool coolant. Choose depth from the TD tables, then establish the coolant connection through the selected body and fitted tip.

Selection guide — Coolant configuration vs length: select a TD body from the documented depth series, then verify the coolant connection through the actual holder. Internal coolant does not create a different tip-locking interface.

Quality and Replacement Support

Production & inspection

The relevant acceptance points are self-locking tip engagement and coolant continuity across the fitted head and holder connection. Agree coolant medium, assembly condition and acceptance criteria before a flow or leakage check; specify pressure and duration separately if a pressure test is requested. These checks should be specified for the selected assembly; request the required records when placing the order.

What to Send Our Factory

Ask your RONGKE supplier contact to identify the combination of TDPA tip fit and internal coolant delivery on the factory offer for the Internal Coolant Quick Change Self Locking Drill. State the number of complete units or replacement parts needed.

FAQ

1. Q: Can an external-coolant holder operate the through-coolant feature?

A: Only a holder arrangement that transfers coolant to the tool inlet can supply its internal passages.

2. Q: Is internal coolant a different length series?

A: No. It is a feature of the listed TD family, whose body choices span 1.5D to 12D.

3. Q: Does coolant delivery allow a different locking-tip interface?

A: No. The TDPA locking interface remains size-specific. Confirm fit and keep the designed outlets clear.

4. Q: Can a pressure-test value be quoted from the family name?

A: No. Agree the actual test pressure, duration and acceptance criteria separately if a pressure test is required.