Drill America
Drill America DWDDL12X41/64X1/2 41/64" x 12" HSS Extra Long Drill Bit 1/2" Shank
A 12-inch high-speed steel drill bit with a 41/64-inch diameter and 1/2-inch shank for deep-reach drilling in metal, wood and plastic
- Extra reach for deep holes with 12 inch overall length
- 41/64 inch diameter suits large fastener clearance holes
- High-speed steel construction handles steel, iron, aluminium and wood
- 118 degree conventional point starts accurately without centre punch
- 1/2 inch round shank fits standard drill chucks and holders
Drill America 41/64" Extra Long HSS Bit
The Drill America DWDDL12X41/64X1/2 is a high speed steel drill bit measuring 41/64" in diameter and 12" in overall length. It features a 1/2" round shank compatible with a wide range of toolholding systems. The 118° conventional point is designed for general purpose drilling across a broad range of materials including iron, steel, aluminum, brass, copper, plastic and wood.
Replacing shorter bits for deep reach
This extra length drill replaces standard jobber bits when the application requires extended reach through thick workpieces or difficult access points. The jump is worth it when a shorter bit cannot physically reach the drilling location or when drilling deep holes in production, maintenance or portable drilling jobs where the extra flute length clears chips more effectively over distance.
Check shank capacity and workpiece material
Before ordering, verify that your drill chuck or toolholder accepts a 1/2" round shank, as smaller chucks will not secure this bit. Confirm the material you are drilling falls within the recommended iron, steel, non-ferrous metal, plastic or wood families. Be aware that this product carries a California Proposition 65 warning regarding chemicals known to cause cancer and reproductive harm.
Highlights
- Extra reach for deep holes with 12 inch overall length
- 41/64 inch diameter suits large fastener clearance holes
- High-speed steel construction handles steel, iron, aluminium and wood
- 118 degree conventional point starts accurately without centre punch
- 1/2 inch round shank fits standard drill chucks and holders
Specifications
| Brand | DRILL AMERICA |
|---|
Questions about this item
What shank diameter does the 12" drill bit need for a secure fit?
The 12" drill bit has a 1/2" round shank that fits standard three-jaw chucks and collet systems.
How do I install the 41/64" bit without damaging the 118° point?
Open the chuck fully, insert the round shank until it seats, then tighten evenly; the step often missed is centring the shank before final tightening to prevent run-out.
When should I replace the HSS extra-long drill bit?
Replace the bit when the 118° conventional point dulls, chips form on the cutting lips, or the flute clogs repeatedly during drilling in steel, aluminium or wood.
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