IRWIN Blue Groove Flat Wood Drill Bit 18x157 mm 10% Larger Shank Hardened Steel

Product Overview

The IRWIN Blue Groove Flat Wood Drill Bit 18x157 mm is engineered for rapid and precise wood drilling in professional carpentry, furniture manufacturing, and construction settings. Its double cutting spurs score the outside of the hole, minimizing wood breakout and ensuring cleaner results in softwood and hardwood applications. Suitable for use with power drills equipped with 1/4" hex chucks, it meets the requirements for heavy-duty, repetitive drilling tasks on job sites and in workshop environments.

A key differentiator for this SKU is the 10% larger shank, which enhances torsional strength and reduces breakage risk versus standard flat bits. This construction detail minimizes downtime and tool replacement costs for industrial procurement, making the bit particularly suited for facility maintenance teams and bulk supply orders in woodworking shops.

Key Features

• Double cutting spurs ? precisely score hole edges, reducing breakout and splintering


• Thicker cutting edge ? provides longer operational life compared to standard bits


• Accelerated chip ejection ? optimized flute design speeds up drilling and bit clearing


• 10% larger shank ? delivers superior strength for demanding tasks and less tool failure


• 1/4" hex shank ? ensures secure grip in drill chuck and prevents bit slippage


• Overall length 157 mm ? supports deep drilling in a variety of wooden materials


• Designed for power drills ? compatible with hand-held and bench-mounted equipment

Technical Specifications

• Bit Type: Flat wood bit


• Cutting Diameter: 18 mm


• Overall Length: 157 mm


• Shank Size: 1/4" hex


• Body Material: Hardened steel


• Shank Enlargement: 10% larger than standard

Applications

Used for rapid drilling of clean holes in softwood, hardwood, chipboard, plywood, and laminated boards. Suitable for woodworking, cabinetry, construction framing, and furniture manufacturing. Ideal for professional contractors, workshop installations, and heavy-duty maintenance teams requiring durable, clean-drilling bits for bulk projects.

Packaging & Shipping

Standard export packaging. Unit includes one 18x157 mm flat wood drill bit with 1/4" hex shank, individually sleeved for shipping protection.