Kennametal 4150177 Screw Machine Drill Bit 10.10mm Carbide

Product Description

The KENNAMETAL 4150177 is a screw machine length drill bit designed for high-performance drilling in ferrous and difficult-to-machine materials. Built from solid carbide with a TiN tip coating, it delivers wear resistance and heat control in demanding production environments. The 140-degree point angle promotes accurate entry and reduces thrust on harder workpieces. At 10.10 mm in diameter with a 102.00 mm overall length, this short-series bit fits tight clearance setups common in CNC machining centers and screw machine applications. Licensed machinists and toolroom technicians working in high-volume metal removal operations will find this bit well-suited to repeat-cycle drilling tasks.

This drill bit is intended for use in steel, stainless steel, cast iron, and high-temperature alloys. The screw machine length format provides added rigidity compared to jobber-length bits, making it a reliable choice for close-tolerance production drilling where runout and deflection must be minimized. The straight cylindrical shank fits standard ER and straight-bore toolholders. It is suitable for both manual and CNC-controlled drilling operations in light manufacturing, aerospace component work, and precision machining shops.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• TiN tip coating reduces friction and extends cutting edge life at the point
• 140-degree standard point angle suited for steel, stainless steel, cast iron, and high-temp alloys
• Screw machine length (102.00 mm OAL) provides extra rigidity over jobber-length drills
• Tapered web configuration improves chip evacuation and reduces walking on entry
• Conforms to DIN 6537K specification with a straight cylindrical shank per DIN 6535
• Maximum drilling depth of 40.00 mm with a 3xD flute-to-diameter ratio

Compatibility

Designed as a direct-fit screw machine length drill bit for use in toolholders accepting a 12.00 mm straight cylindrical shank, compatible with applications in the 9.50 mm to 11.00 mm drill bit size range per DIN 6537K.

Installation Notes

Installation and use of solid carbide drill bits should be performed by qualified machinists or toolroom technicians familiar with CNC or manual drilling equipment. Confirm that the spindle and toolholder are clean and properly torqued before seating the shank, and verify runout with a dial indicator when close-tolerance work is required. Carbide tooling is brittle — avoid side loading, interrupted cuts beyond rated capacity, or impact that can chip the cutting edge. Shut down and de-energize the machine before changing or adjusting tooling.