The P.K.25 short machine tap set for M 3 – M 12 combines seven DIN 352 Form B HSSE short machine taps with the matching HSS core-hole drills and two practical tool holders. The 16 tools cover common metric thread sizes from M 3 to M 12 and are stored together in a plastic case for workshop, assembly and maintenance work.
M denotes the metric ISO thread system widely used in mechanical engineering and maintenance. The Form B short machine taps are designed for through holes and support controlled chip evacuation in the cutting direction. The coordinated core-hole drills make it easier to prepare each thread size correctly before tapping.
- for cutting and reworking metric internal threads from M 3 to M 12
- for general-purpose threading applications
- for readily machinable materials up to 900 N/mm²
- for unalloyed and low-alloy steels
- for through holes
- for workshop, assembly, maintenance and repair work
- matching HSS core-hole drills are included for all seven thread sizes
- for manual or assisted operation depending on the selected holder and working setup
Note: Select the tap and its matching core-hole drill according to the required thread size. Keep the tool aligned with the bore axis and use a cutting fluid suitable for the workpiece material.
- seven common metric thread sizes from M 3 to M 12 in one coordinated set
- HSSE short machine taps DIN 352 Form B for controlled cutting of through-hole threads
- matching HSS core-hole drills simplify correct preparation of the tapping holes
- ratchet tap holder and adjustable tap wrench provide two practical holding options
- all tools are organised together in a plastic case for transport, storage and completeness checks
- individual VÖLKEL article numbers make replacement and reordering of components transparent
Drawback
- Re-cutting is only suitable while sufficient material remains in the existing thread. For stripped or severely damaged internal threads, use a suitable VÖLKEL thread repair solution.
- Select the required metric thread size between M 3 and M 12.
- Choose the matching core-hole drill from the set and prepare the bore to the required diameter.
- Chamfer the entrance of the bore slightly and remove burrs so the tap can start cleanly.
- Secure the matching short machine tap in the ratchet tap holder, adjustable tap wrench or a suitable machine holder.
- Apply a cutting fluid suitable for the workpiece material and align the tap square to the bore axis.
- Cut the thread with controlled feed. With Form B taps in through holes, the chips are directed forward through the hole.
- After reaching the required thread length, reverse the tap completely out of the workpiece.
- Remove chips and cutting-fluid residue and check the finished thread with the mating screw or a suitable thread gauge.
- Clean the tools after use and return all components to the plastic case.
Holders and accessories
- 1x Tap holder with ratchet for right- and left-hand operation No. 1 (10001)
- 1x Adjustable tap wrench, zinc die cast No. 1.1/2 (13015)
Short machine taps
- 1x Short Machine Tap DIN 352 Form B HSSE – M 3 x 0.5 (61526)
- 1x Short Machine Tap DIN 352 Form B HSSE – M 4 x 0.7 (61530)
- 1x Short Machine Tap DIN 352 Form B HSSE – M 5 x 0.8 (61534)
- 1x Short Machine Tap DIN 352 Form B HSSE – M 6 x 1.0 (61538)
- 1x Short Machine Tap DIN 352 Form B HSSE – M 8 x 1.25 (61542)
- 1x Short Machine Tap DIN 352 Form B HSSE – M 10 x 1.5 (61546)
- 1x Short Machine Tap DIN 352 Form B HSSE – M 12 x 1.75 (61550)
Core-hole drills
- 1x HSS twist drill 2.50 mm for M 3
- 1x HSS twist drill 3.30 mm for M 4
- 1x HSS twist drill 4.20 mm for M 5
- 1x HSS twist drill 5.00 mm for M 6
- 1x HSS twist drill 6.80 mm for M 8
- 1x HSS twist drill 8.50 mm for M 10
- 1x HSS twist drill 10.20 mm for M 12
Storage
- 1x plastic case for organised storage of the complete set
- Product class: Threading tools
- Product type: Short machine tap set with core-hole drills and holders
- Thread system: Metric ISO thread M, DIN 13
- Thread range: M 3 – M 12
- Tap standard: DIN 352
- Form: B
- Tap material: HSSE
- Drill material: HSS
- Primary application: Through holes
- Tool count: 16 tools
- Storage: Plastic case
- Item number: 47605
- Which thread sizes are included in the P.K.25 set?
- The set contains short machine taps for M 3, M 4, M 5, M 6, M 8, M 10 and M 12 together with the matching core-hole drills for each thread size.
- Which core-hole drill belongs to each thread size?
- M 3 uses 2.50 mm, M 4 uses 3.30 mm, M 5 uses 4.20 mm, M 6 uses 5.00 mm, M 8 uses 6.80 mm, M 10 uses 8.50 mm and M 12 uses 10.20 mm.
- What is Form B intended for?
- Form B short machine taps are intended for through-hole applications. Their cutting geometry directs the chips forward through the bore during tapping.
- What does HSSE mean for the taps in this set?
- HSSE is a high-speed steel containing cobalt. It provides high cutting-edge durability and is suitable for demanding threading work as well as general-purpose use.
- Can the individual components be reordered?
- Yes. The individual tap and holder article numbers are listed in the scope of supply and linked directly to the corresponding VÖLKEL product pages where available. This makes it easier to identify the correct replacement component.
- Can the set also be used to re-cut an existing thread?
- Yes, provided the existing thread still has sufficient material and the correct size is used. If the thread is stripped or substantially damaged, an insert-based thread repair may be the more reliable solution.
- Where can you find technical information about short machine taps?
- Technical information for short machine taps as PDF
- Where can you find the complete VÖLKEL threading tools programme?
- You can find further product and application information in the VD 23 Threading Tools catalogue as PDF.
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In this category: Threading Tools
