A pilot drill (also called a mandrel or center drill) is an essential aid when cutting with a hole saw. Its function is to position the hole saw on the material to be cut during the cutting process and ensure that the hole saw remains stable and accurate during the cutting process.
Different hole saws have different requirements in terms of usage scenarios and materials, so corresponding center drills are required for use. Center drills are usually made of carbide material, which has high hardness and wear resistance. Its shape and size will also vary depending on the design and size of the hole saw.
When choosing a center drill, it is recommended to select the corresponding model and size based on the specifications and requirements of the hole saw being used. This ensures that the hole saw remains stable during use and the cutting results are more accurate and efficient. At the same time, pay attention to the wear of the center drill during use and replace it in time to ensure cutting quality and safety.
Art.No. | Shank Size | Thread Size | Chunk Size | Fit Size |
HA-B-001 | 1/4 Round | 1/2-20 UNF | 1/4 | 9/19-1-3/16 |
HA-B-002 | 3/8 Hex | 1/2-20 UNF | 3/8 | 9/19-1-3/16 |
HA-B-003 | 3/8 Hex | 1/2-20 UNF | 3/8 | 9/19-1-3/16 |
HA-B-004 | 7/16 Hex | 1/2-20 UNF | 1/2 | 9/19-1-3/16 |
HA-B-005 | 1/4 Hex | 1/2-20 UNF | 1/2 | 9/19-1-3/16 |
HA-B-006 | 3/8 Hex | 5/8-18 UNF | 1/2 | 1-1/4-8-17/64 |
HA-B-007 | 7/16 Hex | 5/8-18 UNF | 1/2 | 1-1/4-8-17/64 |
HA-B-008 | 7/16 Hex | 5/8-18 UNF | 1/2 | 1-1/4-8-17/64 |
HA-B-009 | 3/8 Hex | 5/8-18 UNF | 3/8 | 1-1/4-8-17/64 |
HA-B-010 | 7/16 Hex | 5/8-18 UNF | 1/2 | 1-1/4-8-17/64 |
HA-B-011 | 3/8 Hex | 5/8-18 UNF | 3/8 | 1-1/4-8-17/64 |
HA-B-012 | 7/16 Hex | 5/8-18 UNF | 1/2 | 1-1/4-8-17/64 |
HA-B-013 | 5/8 Hex | 5/8-18 UNF | 3/4 | 1-1/4-8-17/64 |
HA-B-014 | 7/16 Hex | 5/8-18 UNF | 1/2 | 1-1/4-8-17/64 |
HA-B-015 | 3/8 Hex | 5/8-18 UNF | 3/8 | 1-1/4-8-17/64 |
HA-B-016 | 1/4 Hex | 5/2-20 UNF | 3/8 | 9/16-1-3/16 |
HA-B-017 | 3/8 Hex | 1/2-20 UNF | 3/8 | 9/16-1-3/16 |
HA-B-018 | 3/8 Hex | 5/8-18 UNF | 3/8 | 1-1/4-8-17/64 |
HA-B-019 | 3/8 Hex | 5/8-18 UNF | 3/8 | 1-1/4-8-17/64 |
HA-B-020 | SDS Plus | 1/2-20 UNF | SDS | 9/16-1-3/16 |
HA-B-021 | SDS Plus | 5/8-18 UNF | SDS | 1-1/4-8-17/64 |
HA-B-022 | 7/16 Hex | 5/8-18 UNF | 1/2 | 1-1/4-8-17/64 |
HA-B-023 | - | 5/8-18 UNF | 1/2 | 1-1/4-8-17/64 |
HA-B-025 | - | - | 1/2 | 1/4" quick change hex shank |
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