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Drillco

Drillco 350N29, 29 Piece HSS Mechanics Length Drill Bit Set, 1/16" - 1/2" in 1/64" increments

Drillco 350N29, 29 Piece HSS Mechanics Length Drill Bit Set, 1/16" - 1/2" in 1/64" increments

350n29

$141.09
Shipping: Free ground to lower 48 on qualifying orders.
Drillco 29 piece mechanics length drill set. The Nitro heavy duty 135 degree split point drill with nitride surface treatment, that give a hard, protective layer to the drill (i...
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Automatic savings: 5% off $150+ · 7% off $300+ (applied at checkout — no code)
Typically ships within 1–2 business days. Shipping: Free ground to lower 48 on qualifying orders.
Ships from
Corydon, IN
Free ground
Lower 48 (qualifying)
Returns
Unused / original packaging

Fitment Help

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  • Check your equipment model number
  • Verify the specifications match your requirements
  • Review the product description for compatibility details

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Shipping & Returns

  • Ships from: Corydon, Indiana
  • Fulfillment: Lead time shown above (defaults to 1–2 business days unless noted)
  • Shipping: Free shipping on ground orders to lower 48 states (qualifying orders)
  • Pickup: Available at our Corydon location (usually ready in 2–4 days)
  • Returns: Accepted on unused items in original packaging

Discounts: 5% off $150+ and 7% off $300+ apply automatically at checkout (no code).

Ordered the wrong part? Contact us at sales@arcweldinc.com before opening—we'll help you exchange for the correct one.

Drillco 29 piece mechanics length drill set. The Nitro heavy duty 135 degree split point drill with nitride surface treatment, that give a hard, protective layer to the drill (increases hardness without increasing brittleness), which is measurably harder than High-Speed Steel. Body and clearance are black and gold surface treated for maximum lubricity. Recommended for use in stainless steel and other hard metal drilling. High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge. Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools. These round shank tools have flats ground onto three sides to reduce slippage of the bit when used in drill chucks. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging. What's in the Box? 29 screw machine length drill bits ranging in size from 1/16" to 1/2" in 1/64" increments
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