SPMG -ZK | Cost-Effective U-Drill Insert for Steel & Iron& ss

ZANHO SPMG-ZK series is a professional indexable drill insert designed for high-volume drilling in carbon steel, alloy steel, and cast iron. Engineered for cost-efficiency, it features a 4-edge square structure and the specialized ZK chipbreaker with triangular rib geometry. It provides superior edge strength and balanced durability, making it an ideal choice for mass-production CNC U-drilling where tool cost and reliability are key priorities.

Categories: Drilling Inserts

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Key Performance & Features

General Machining Specialist: Optimized for drilling in common carbon steel, alloy steel, and cast iron with exceptional stability.
ZK Chipbreaker Geometry: Features distributed triangular protrusions that effectively segment wide chips into short pieces, reducing the risk of clogging in the hole.
Reinforced Edge Design: Controlled chamfers on the cutting edge provide excellent impact resistance, allowing for stable drilling on forging parts or components with light oxide scales.
Economic 4-Edge Logic: Square geometry with four usable cutting corners maximizes tool utilization and lowers the overall cost-per-hole.
High Universal Compatibility: Precision-manufactured to be compatible with mainstream U-drill bodies currently available on the market.

Dimensional Specifications

Model	D (mm)	d1 (mm)	S (mm)	R (mm)
SPMG050204-ZK	5.0	2.52	2.39	0.4
SPMG060204-ZK	6.0	2.61	2.38	0.4
SPMG07T308-ZK	7.94	2.85	3.97	0.8
SPMG090408-ZK	9.8	4.05	4.30	0.8
SPMG110408-ZK	11.5	4.45	4.78	0.8
SPMG140512-ZK	14.3	5.75	5.20	1.2

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ZANHO offers premium CVD/PVD coated grades for optimized drilling performance. Contact us today for competitive B2B wholesale pricing and grade matching recommendations.

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