Best Irwin Tools Forstner Drill Bits in 2026

Includes 5 bits 15-35mm in diameter

Unique wavy rim design reduces friction and heat buildup

Razor-sharp edge creates smooth, precise holes

Easy and effortless cutting due to ideal cutting geometries

For drilling splinter-free, true to size blind holes, for edge drillings and slant drillings in softwood and hardwood

Sizes: 20; 25; 30; 35; 40; 50 mm

【15-Piece Forstner Bit Set】: jxgzyy wood drilling forstner bits from 2/5 to 2 Inch include 10mm(2/5''), 12mm(1/2"), 15mm(19/32"), 16mm(5/8"), 18mm(45/64"), 20mm(3/4"), 22mm(7/8"), 25mm(1"), 26mm(1-1/16"), 28mm(1-1/8"), 30mm(1-3/16"), 35mm(1-3/8"), 40mm(1-3/5"), 45mm(1-3/4"), 50mm(2"). Come with a wooden storage case, easy to organize the bits and protect them when not in use.

【Durable Material】: Forstner bits set is made of high-quality steel, with the advantage of sharp edge, accurate positioning, high precision and stable cutting.

【Sharp Design】: Our drill has the features of sharp edge, accurate positioning, high hardness, impact resistance, high precision, smooth cutting and high toughness. Fostner bit can produce holes that are smooth and flat, and create "chisel-like" curls for fast, clean chip removal.

Set includes 12, 15, 16, 18, 20, 22, 24, 25, 26, 28, 30, 35, 38, 40, 45, 50mm sizes

All bits have an overall length of 90mm or 3-1/2\

Metric sizes are required for many hardware installations

Famag Forstner Bit - Metric

35-millimeter Diameter, 10-millimeter Shank

3-1/2-inch Overall length

Famag Forstner Bit - Metric

20-millimeter Diameter, 8-millimeter Shank

3-1/2-inch Overall length

Famag Forstner Bit - Metric

45-millimeter Diameter, 10-millimeter Shank

3-1/2-inch Overall length