BOHRCRAFT Countersinks – 1733 HSS-E Cobalt 5%, BLUE+ Coated, 90° Unequal Pitch

The BOHRCRAFT 1733 Countersink is a professional-grade tool engineered for burr-free, smooth countersinking in demanding materials. Made from HSS-E cobalt (5% cobalt alloyed high-speed steel), it provides excellent heat resistance, wear resistance, and durability, even under heavy-duty use.

Featuring a 90° cutting angle with unequal pitch geometry, this countersink reduces chatter and vibration, resulting in cleaner surfaces and longer tool life. The advanced BLUE+ coating improves hardness, minimizes friction, and allows for higher cutting speeds.

Specifications:

• Brand/Series: BOHRCRAFT 1733

• Type: Countersink bit

• Material: HSS-E cobalt (5%) – high durability and heat resistance

• Coating: BOHRCRAFT BLUE+ – enhanced wear and surface protection

• Cutting Angle: 90°

• Geometry: Unequal pitch – chatter-free performance

• Application: Precision countersinking and deburring

Features & Applications:

• Unequal pitch design minimizes vibration and produces smooth, chatter-free finishes

• 5% cobalt alloyed HSS-E provides strength and long tool life

• BLUE+ coating improves wear resistance, reduces heat, and enables higher cutting speeds

• Suitable for stainless steel (INOX), hardened steels, cast steel, and tough alloys

• Ideal for metal fabrication, industrial machining, and precision assembly work