Skip to content
Contact Us Jewelry School Partners Frequently Asked Questions Submit Tax Exemption
Dumont Pattern No. 7 Tweezers - Otto Frei
Dumont

Dumont Pattern No. 7 Tweezers

Part # 157.247 Out of Stock Weight -- lb / -- g
$73.25
Volume pricing
Total qty Discount Per unit You save
1 – 2 — $73.25 —
3 – 4 5% off $69.59 $3.66
5 – 9 10% off $65.92 $7.33
10 + 12% off $64.46 $8.79
Add 2 more for 5% off, saves another $3.66 each.
Metals: Dumont HP Dumostar #7

Dumont Pattern No. 7 Tweezers are Swiss-made precision tools designed for handling miniature and micro-miniature parts and components. The curved shank design allows the user to rest their hand on the bench during assembly operations, reducing fatigue and improving control. Curved shanks feature beveled edges, and the points carry a plain finish with exceptionally sharp tips. Overall length is 4-1/2" (115mm).

Available in two quality grades — High Precision (HP) and Electronic Quality (EQ) — and across multiple metal types to suit the demands of watchmakers, jewelers, and precision assembly professionals.

The High Precision (HP) grade features extensive hand finishing and represents Dumont's finest quality. These are the tweezers trusted by the world's most skilled watchmakers.

The Electronic Quality (EQ) grade offers less hand finishing than HP but is built for reliable assembly work, making it an excellent choice for everyday professional use.

Features

  • Swiss-made precision tweezers
  • Pattern No. 7 curved shank design — allows hand to rest on bench during use
  • Beveled edges on curved shanks
  • Plain finish, very sharp points
  • Available in High Precision (HP) and Electronic Quality (EQ) grades
  • Multiple metal types available to match application requirements

Specifications

Origin Switzerland
Overall Length 4-1/2" (115mm)
Shank Style Curved with beveled edges
Point Finish Plain, very sharp
Quality Grades Available High Precision (HP), Electronic Quality (EQ)

Available Options

Part # Grade Metal Type Key Properties
157.01207 EQ Stainless Steel (Dumont INOX) Corrosion and acid resistant; rust resistant; long-lasting edge
157.244 HP Carbon Steel Highest strength; magnetic; requires oiled storage to prevent rust
157.245 HP Stainless Steel (Dumont INOX) Corrosion and acid resistant; rust resistant; long-lasting edge
157.246 HP Anti-Magnetic Stainless Steel (Dumoxel) Non-magnetic; corrosion and acid resistant
157.247 HP Dumostar Super-Hard Alloy Hardened to minimum Rockwell 61; magnetic-resistant; acid and rust resistant; points retain sharpness indefinitely with careful use
California Prop 65 Warning California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.
Brand
Dumont
Part #
157.247
Type
Tweezers
Country of Origin
United States
Dimensions
6 in x 2 in x 0.5 in
Overall Length
4-1/2" (115mm)
Shank Style
Curved with beveled edges
Point Finish
Plain, very sharp
Quality Grades Available
High Precision (HP), Electronic Quality (EQ)