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Set of twenty 3/8 inch HSS spot weld cutters with hex shanks and spring-loaded center pins

NSI

NSI YDF03210171 20 Pcs Double-Sided Rotary Spot Weld Cutter Drill Bit Kit 3/8" HSS

SKU CH-VWB4-9J0V4 MPN YDF03210171

A 20-piece high-speed steel rotary spot weld cutter set with double-sided 3/8" bits, spring-loaded centre pins and 1/4" hex shanks for clean panel separation

  • Labor warranty1 Year
  • Main materialHigh-Speed Steel (HSS)
  • Product typeHammer Drill Accessories
  • Key featuresIron, cast iron, alloy steel, carbon steel, die steel, and t
  • Parts warranty1 Year
  • 20-piece HSS kit delivers long-lasting cutting performance
  • Double-sided 3/8" bits let you flip for extended life
  • Spring-loaded center pin guides clean, undistorted cuts
  • 1/4" hex shank fits most power drills for quick changes
  • Cuts stainless steel, iron, aluminum, F.R.P. and thin sheet metal

20-Piece Spot Weld Cutter Kit

This 20-piece kit supplies double-sided rotary spot weld cutters made from high-speed steel. The bits are designed to separate spot-welded panels cleanly and fit most standard power drills via a 1/4 inch hex shank. They suit automotive repair, metal fabrication and maintenance tasks where panel separation is required.

3/8 Inch Cutting Diameter

Each cutter has a 3/8 inch (9.5 mm) saw-tooth diameter that determines the size of the spot weld it can remove. The spring-loaded centre pin centres the bit on the weld for accurate, undistorted cuts through thin sheets of stainless steel, iron, aluminum and F.R.P. Double-sided blades allow the bit to be flipped when one side dulls.

Heat and Wear Resistance

High-speed steel construction provides hardness and wear resistance during repeated cutting in metal. The double-sided design extends usable life before replacement is needed. Blades can be swapped out easily to maintain cutting effectiveness without replacing the entire cutter body.

How it compares

Measured against everything we stock in Power Drills, Drivers & Cutting Bits, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 83% of the 2,412 comparable items (median $81.99).

Specifications

Product
Brand nameNSI
Model nameYDF03210171
Part numberN002082703
Product typeHammer Drill Accessories
Size & build
Main materialHigh-Speed Steel (HSS)

Questions about this item

What does the 3/8 inch diameter mean when the bit is in a drill?

The 3/8 inch (9.5 mm) saw-tooth diameter matches common automotive spot welds so each cut removes the weld nugget without enlarging the hole.

How does the 1/4 inch hex shank limit what drills can be used?

The 1/4 inch hex shank fits standard drill chucks and quick-change adapters but will not seat in SDS-plus or SDS-max rotary hammers.

What clearance does the double-sided cutter need to mount and flip?

The spring-loaded center pin and double-sided blade require only enough room for the 3/8 inch cutter body to sit flat on the panel and rotate freely.

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